======================================
| [   19.423341][  T305] veth1: entered promiscuous mode
| [   19.425491][  T305] ------------[ cut here ]------------
| [ 19.425966][ T305] WARNING: CPU: 0 PID: 305 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) 
| [   19.426570][  T305] Modules linked in: bridge stp llc sch_ingress vrf veth
[   19.427890][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.428275][ T305] 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) 
[ 19.428595][ T305] 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
[   19.429693][  T305] RSP: 0018:ffffc90000646ef0 EFLAGS: 00010246
[   19.430092][  T305] RAX: 0000000000000000 RBX: ffff888009872000 RCX: 0000000000000001
[   19.430554][  T305] RDX: 0000000000000000 RSI: ffffffff88a9b941 RDI: ffffffff882555e0
[   19.431024][  T305] RBP: ffffc90000646fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.431485][  T305] R10: ffffc90000647010 R11: ffffffff898a8918 R12: 1ffff920000c8de2
[   19.431965][  T305] R13: 00000000000005dc R14: ffffc90000647010 R15: ffff888009872f08
[   19.432427][  T305] FS:  00007f48563c3800(0000) GS:ffff8880ab6b7000(0000) knlGS:0000000000000000
[   19.432976][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.433364][  T305] CR2: 00000000004e5aa8 CR3: 000000000f71b006 CR4: 0000000000772ef0
[   19.433836][  T305] PKRU: 55555554
[   19.434226][  T305] Call Trace:
[   19.434458][  T305]  <TASK>
[ 19.434621][ T305] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.434953][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.435268][ T305] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.435575][ T305] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.435966][ T305] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.436281][ T305] netif_set_mtu (net/core/dev.c:9652) 
[ 19.436592][ T305] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.436918][ T305] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.437343][ T305] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.437579][ T305] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.437998][ T305] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.438351][ T305] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.438670][ T305] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.438980][ T305] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.439366][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.439680][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.439992][ T305] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.440301][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.440614][ T305] ? __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) 
[ 19.440929][ T305] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.441307][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.441635][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.441949][ T305] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.442265][ T305] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.442570][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.442885][ T305] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.443201][ T305] ? __create_object (mm/kmemleak.c:771) 
[ 19.443520][ T305] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.443839][ T305] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.444144][ T305] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.444534][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.444861][ T305] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.445173][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.445477][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.445790][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.446096][ T305] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.446399][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.446713][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.447033][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.447339][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.447650][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.447969][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.448276][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.448578][ T305] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.448914][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.449220][ T305] ? 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) 
[ 19.449542][ T305] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.449857][ T305] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.450161][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.450469][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.451048][ T305] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.451352][ T305] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.451908][ T305] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.452217][ T305] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.452972][ T305] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.453362][ T305] ___sys_sendmsg (net/socket.c:2670) 
[ 19.453670][ T305] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.454208][ T305] ? __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) 
[ 19.454589][ T305] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.454914][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.455225][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.455766][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.456071][ T305] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.456373][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.456688][ T305] __sys_sendmsg (net/socket.c:2700) 
[ 19.457214][ T305] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.457588][ T305] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.457912][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.458223][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.458758][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.459136][  T305] RIP: 0033:0x7f48565901e7
[ 19.459452][ T305] 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)
[   19.460777][  T305] RSP: 002b:00007ffd7e03ff08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.461238][  T305] RAX: ffffffffffffffda RBX: 00007ffd7e040630 RCX: 00007f48565901e7
[   19.461936][  T305] RDX: 0000000000000000 RSI: 00007ffd7e03ff70 RDI: 0000000000000005
[   19.462392][  T305] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.463081][  T305] R10: 0000000039169910 R11: 0000000000000246 R12: 0000000000000004
[   19.463538][  T305] R13: 00000000686e1640 R14: 0000000000499600 R15: 0000000000000000
| [   19.727476][  T308] ------------[ cut here ]------------
| [ 19.727817][ T308] WARNING: CPU: 3 PID: 308 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) 
| [   19.728444][  T308] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   19.729747][  T308] Tainted: [W]=WARN
[   19.729995][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.730391][ T308] 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) 
[ 19.731651][ T308] 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
[   19.732823][  T308] RSP: 0018:ffffc90000656ef0 EFLAGS: 00010246
[   19.733229][  T308] RAX: 0000000000000000 RBX: ffff888009872000 RCX: 0000000000000001
[   19.733729][  T308] RDX: 0000000000000000 RSI: ffffffff88a9b941 RDI: ffffffff882555e0
[   19.734218][  T308] RBP: ffffc90000656fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.734713][  T308] R10: ffffc90000657010 R11: ffffffff898a8918 R12: 1ffff920000cade2
[   19.735223][  T308] R13: 00000000000005dc R14: ffffc90000657010 R15: ffff888009872f08
[   19.735688][  T308] FS:  00007f8a8a49f800(0000) GS:ffff8880ab837000(0000) knlGS:0000000000000000
[   19.736224][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.736606][  T308] CR2: 00000000004e5ab0 CR3: 000000000c1fd004 CR4: 0000000000772ef0
[   19.737102][  T308] PKRU: 55555554
[   19.737344][  T308] Call Trace:
[   19.737584][  T308]  <TASK>
[ 19.737770][ T308] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.738104][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.738437][ T308] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.738768][ T308] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.739170][ T308] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.739492][ T308] netif_set_mtu (net/core/dev.c:9652) 
[ 19.739821][ T308] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.740155][ T308] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.740598][ T308] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.740850][ T308] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.741277][ T308] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.741636][ T308] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.741978][ T308] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.742310][ T308] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.742723][ T308] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.743043][ T308] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.743357][ T308] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.743692][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.744016][ T308] ? __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) 
[ 19.744336][ T308] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.744745][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.745068][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.745384][ T308] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.745722][ T308] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.746041][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.746359][ T308] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.746683][ T308] ? __create_object (mm/kmemleak.c:771) 
[ 19.747006][ T308] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.747324][ T308] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.747641][ T308] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.748050][ T308] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.748377][ T308] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.748718][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.749037][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.749359][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.749688][ T308] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.750005][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.750323][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.750644][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.750974][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.751295][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.751617][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.751948][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.752270][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.752602][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.752934][ T308] ? 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) 
[ 19.753257][ T308] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.753583][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.753921][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.754247][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.754574][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.754916][ T308] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.755248][ T308] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.755575][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.755902][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.756312][ T308] ___sys_sendmsg (net/socket.c:2670) 
[ 19.756630][ T308] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.756958][ T308] ? __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) 
[ 19.757359][ T308] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.757708][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.758039][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.758365][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.758694][ T308] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.759015][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.759340][ T308] __sys_sendmsg (net/socket.c:2700) 
[ 19.759654][ T308] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.760064][ T308] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.760400][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.760733][ T308] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.761058][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.761452][  T308] RIP: 0033:0x7f8a8a66c1e7
[ 19.761801][ T308] 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)
[   19.762951][  T308] RSP: 002b:00007ffdff0c16a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.763433][  T308] RAX: ffffffffffffffda RBX: 00007ffdff0c1dd0 RCX: 00007f8a8a66c1e7
[   19.763919][  T308] RDX: 0000000000000000 RSI: 00007ffdff0c1710 RDI: 0000000000000005
[   19.764399][  T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.764926][  T308] R10: 0000000024691910 R11: 0000000000000246 R12: 0000000000000004
[   19.765383][  T308] R13: 00000000686e1640 R14: 0000000000499600 R15: 0000000000000000
| [   42.824641][  T510] ------------[ cut here ]------------
| [ 42.825174][ T510] WARNING: CPU: 0 PID: 510 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) 
| [   42.825953][  T510] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   42.827365][  T510] Tainted: [W]=WARN
[   42.827598][  T510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.828125][ T510] 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) 
[ 42.828438][ T510] 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
[   42.829707][  T510] RSP: 0018:ffffc90000d1ef70 EFLAGS: 00010246
[   42.830093][  T510] RAX: 0000000000000000 RBX: ffff888009872000 RCX: 0000000000000001
[   42.830545][  T510] RDX: 0000000000000000 RSI: ffffffff88a9b941 RDI: ffffffff882555e0
[   42.831155][  T510] RBP: ffffc90000d1f058 R08: 0000000000000000 R09: 0000000000000000
[   42.831609][  T510] R10: ffffc90000d1f088 R11: ffffffff84e00130 R12: 1ffff920001a3df2
[   42.832210][  T510] R13: 00000000000005dc R14: ffffc90000d1f088 R15: ffff888009872f08
[   42.832672][  T510] FS:  00007fe8289ab800(0000) GS:ffff8880ab6b7000(0000) knlGS:0000000000000000
[   42.833208][  T510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.833597][  T510] CR2: 00000000004e5ab0 CR3: 000000000ab2e004 CR4: 0000000000772ef0
[   42.834086][  T510] PKRU: 55555554
[   42.834314][  T510] Call Trace:
[   42.834544][  T510]  <TASK>
[ 42.834707][ T510] ? __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) 
[ 42.835105][ T510] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 42.835454][ T510] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.835768][ T510] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.836073][ T510] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.836375][ T510] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.836691][ T510] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.836993][ T510] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.837296][ T510] ? ___sys_sendmsg (net/socket.c:2670) 
[ 42.837597][ T510] ? __sys_sendmsg (net/socket.c:2700) 
[ 42.837916][ T510] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.838219][ T510] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 42.838594][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.838916][ T510] netif_set_mtu (net/core/dev.c:9652) 
[ 42.839221][ T510] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.839542][ T510] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.839781][ T510] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 42.840202][ T510] br_del_if (net/bridge/br_if.c:743) bridge 
[ 42.840532][ T510] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 42.840864][ T510] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.841171][ T510] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.841481][ T510] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.841874][ T510] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.842177][ T510] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.842487][ T510] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.842804][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.843111][ T510] ? __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) 
[ 42.843415][ T510] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.843799][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.844103][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.844403][ T510] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.844722][ T510] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.845039][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.845339][ T510] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.845640][ T510] ? __create_object (mm/kmemleak.c:771) 
[ 42.845956][ T510] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.846266][ T510] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.846568][ T510] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.846955][ T510] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.847270][ T510] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.847577][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.847890][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.848198][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.848502][ T510] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.848814][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.849120][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.849424][ T510] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.849743][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.850050][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.850359][ T510] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.850670][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.850974][ T510] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.851287][ T510] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.851614][ T510] ? 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) 
[ 42.851940][ T510] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.852248][ T510] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.852549][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.852868][ T510] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.853176][ T510] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.853478][ T510] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.853796][ T510] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.854104][ T510] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.854404][ T510] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.854814][ T510] ___sys_sendmsg (net/socket.c:2670) 
[ 42.855117][ T510] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.855420][ T510] ? __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) 
[ 42.855805][ T510] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.856112][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.856424][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.856743][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.857047][ T510] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.857348][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.857668][ T510] __sys_sendmsg (net/socket.c:2700) 
[ 42.857970][ T510] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.858345][ T510] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.858675][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.858988][ T510] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.859292][ T510] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.859681][  T510] RIP: 0033:0x7fe828b781e7
[ 42.860005][ T510] 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)
[   42.861101][  T510] RSP: 002b:00007ffc88278ff8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.861558][  T510] RAX: ffffffffffffffda RBX: 00007ffc88279720 RCX: 00007fe828b781e7
[   42.862022][  T510] RDX: 0000000000000000 RSI: 00007ffc88279060 RDI: 0000000000000005
[   42.862477][  T510] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   42.862939][  T510] R10: 00007fe828a75ee8 R11: 0000000000000246 R12: 0000000000000003
[   42.863395][  T510] R13: 00000000686e1657 R14: 0000000000499600 R15: 0000000000000000
| [   43.148623][  T512] ------------[ cut here ]------------
| [ 43.149575][ T512] WARNING: CPU: 3 PID: 512 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) 
| [   43.150183][  T512] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   43.151366][  T512] Tainted: [W]=WARN
[   43.151603][  T512] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.151991][ T512] 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) 
[ 43.152306][ T512] 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
[   43.153393][  T512] RSP: 0018:ffffc90000c6ef70 EFLAGS: 00010246
[   43.153792][  T512] RAX: 0000000000000000 RBX: ffff888009872000 RCX: 0000000000000001
[   43.154251][  T512] RDX: 0000000000000000 RSI: ffffffff88a9b941 RDI: ffffffff882555e0
[   43.154712][  T512] RBP: ffffc90000c6f058 R08: 0000000000000000 R09: 0000000000000000
[   43.155180][  T512] R10: ffffc90000c6f088 R11: ffffffff88f79160 R12: 1ffff9200018ddf2
[   43.155641][  T512] R13: 00000000000005dc R14: ffffc90000c6f088 R15: ffff888009872f08
[   43.156104][  T512] FS:  00007fa9a8899800(0000) GS:ffff8880ab837000(0000) knlGS:0000000000000000
[   43.156632][  T512] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.157024][  T512] CR2: 00000000004e5aa8 CR3: 0000000004e39003 CR4: 0000000000772ef0
[   43.157482][  T512] PKRU: 55555554
[   43.157726][  T512] Call Trace:
[   43.157955][  T512]  <TASK>
[ 43.158109][ T512] ? __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) 
[ 43.158488][ T512] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 43.158853][ T512] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 43.159161][ T512] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 43.159468][ T512] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.159785][ T512] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 43.160098][ T512] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.160402][ T512] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.160718][ T512] ? ___sys_sendmsg (net/socket.c:2670) 
[ 43.161020][ T512] ? __sys_sendmsg (net/socket.c:2700) 
[ 43.161323][ T512] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.161624][ T512] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 43.162010][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.162322][ T512] netif_set_mtu (net/core/dev.c:9652) 
[ 43.162633][ T512] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 43.162962][ T512] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 43.163195][ T512] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 43.163607][ T512] br_del_if (net/bridge/br_if.c:743) bridge 
[ 43.163946][ T512] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 43.164252][ T512] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 43.164558][ T512] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 43.164899][ T512] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 43.165284][ T512] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 43.165587][ T512] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 43.165899][ T512] ? __kernel_text_address (kernel/extable.c:79) 
[ 43.166209][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.166517][ T512] ? __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) 
[ 43.166831][ T512] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 43.167215][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.167526][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.167842][ T512] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 43.168153][ T512] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 43.168461][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.168780][ T512] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.169080][ T512] ? __create_object (mm/kmemleak.c:771) 
[ 43.169386][ T512] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 43.169710][ T512] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 43.170017][ T512] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 43.170399][ T512] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 43.170725][ T512] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.171041][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.171348][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.171677][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.171992][ T512] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.172299][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.172609][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.172936][ T512] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.173242][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.173547][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.173871][ T512] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.174173][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.174485][ T512] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.174820][ T512] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.175123][ T512] ? 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) 
[ 43.175430][ T512] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 43.175749][ T512] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.176054][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.176360][ T512] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.176682][ T512] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.176988][ T512] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.177298][ T512] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.177606][ T512] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.177920][ T512] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.178309][ T512] ___sys_sendmsg (net/socket.c:2670) 
[ 43.178615][ T512] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.178936][ T512] ? __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) 
[ 43.179316][ T512] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.179622][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.179940][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.180250][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.180554][ T512] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 43.180864][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.181182][ T512] __sys_sendmsg (net/socket.c:2700) 
[ 43.181481][ T512] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.181870][ T512] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.182186][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.182492][ T512] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.182811][ T512] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.183187][  T512] RIP: 0033:0x7fa9a8a661e7
[ 43.183510][ T512] 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)
[   43.184596][  T512] RSP: 002b:00007fff772357a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.185083][  T512] RAX: ffffffffffffffda RBX: 00007fff77235ed0 RCX: 00007fa9a8a661e7
[   43.185544][  T512] RDX: 0000000000000000 RSI: 00007fff77235810 RDI: 0000000000000005
[   43.186011][  T512] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   43.186469][  T512] R10: 00007fa9a8963ee8 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