======================================
| [   19.150087][  T303] veth1: entered promiscuous mode
| [   19.152476][  T303] ------------[ cut here ]------------
| [ 19.152819][ T303] WARNING: CPU: 3 PID: 303 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) 
| [   19.153455][  T303] Modules linked in: bridge stp llc sch_ingress vrf veth
[   19.154501][  T303] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.155302][ T303] 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) 
[ 19.155624][ T303] 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
[   19.156739][  T303] RSP: 0018:ffffc90000536ef0 EFLAGS: 00010246
[   19.157144][  T303] RAX: 0000000000000000 RBX: ffff8880059f2000 RCX: 0000000000000001
[   19.157862][  T303] RDX: 0000000000000000 RSI: ffffffffb269b941 RDI: ffffffffb1e555e0
[   19.158335][  T303] RBP: ffffc90000536fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.158797][  T303] R10: ffffc90000537010 R11: ffffffffb34a8918 R12: 1ffff920000a6de2
[   19.159268][  T303] R13: 00000000000005dc R14: ffffc90000537010 R15: ffff8880059f2f08
[   19.159730][  T303] FS:  00007f0d28f65800(0000) GS:ffff88807ae37000(0000) knlGS:0000000000000000
[   19.160290][  T303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.160678][  T303] CR2: 00000000004e5aa8 CR3: 0000000005127002 CR4: 0000000000772ef0
[   19.161178][  T303] PKRU: 55555554
[   19.161414][  T303] Call Trace:
[   19.161646][  T303]  <TASK>
[ 19.161810][ T303] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.162141][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.162464][ T303] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.162775][ T303] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.163171][ T303] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.163485][ T303] netif_set_mtu (net/core/dev.c:9652) 
[ 19.163796][ T303] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.164140][ T303] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.164573][ T303] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.164811][ T303] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.165243][ T303] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.165599][ T303] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.165925][ T303] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.166263][ T303] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.166657][ T303] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.166982][ T303] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.167290][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.167601][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.167922][ T303] ? __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) 
[ 19.168229][ T303] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.168611][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.168932][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.169236][ T303] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.169554][ T303] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.169870][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.170178][ T303] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.170479][ T303] ? __create_object (mm/kmemleak.c:771) 
[ 19.170789][ T303] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.171107][ T303] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.171412][ T303] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.171797][ T303] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.172118][ T303] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.172432][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.172735][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.173055][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.173360][ T303] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.173663][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.173979][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.174291][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.174601][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.174924][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.175238][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.175547][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.175875][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.176208][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.176518][ T303] ? 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) 
[ 19.176826][ T303] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.177150][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.177457][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.177770][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.178088][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.178397][ T303] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.178718][ T303] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.179036][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.179343][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.179741][ T303] ___sys_sendmsg (net/socket.c:2670) 
[ 19.180052][ T303] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.180362][ T303] ? __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) 
[ 19.180753][ T303] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.181070][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.181380][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.181695][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.182008][ T303] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.182316][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.182631][ T303] __sys_sendmsg (net/socket.c:2700) 
[ 19.182944][ T303] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.183330][ T303] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.183649][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.183966][ T303] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.184275][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.184660][  T303] RIP: 0033:0x7f0d291321e7
[ 19.184993][ T303] 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)
[   19.186140][  T303] RSP: 002b:00007fffd7c132e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.186612][  T303] RAX: ffffffffffffffda RBX: 00007fffd7c13a10 RCX: 00007f0d291321e7
[   19.187085][  T303] RDX: 0000000000000000 RSI: 00007fffd7c13350 RDI: 0000000000000005
[   19.187558][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.188336][  T303] R10: 00000000360ef910 R11: 0000000000000246 R12: 0000000000000004
[   19.188801][  T303] R13: 00000000686e218d R14: 0000000000499600 R15: 0000000000000000
| [   19.443209][  T307] ------------[ cut here ]------------
| [ 19.443563][ T307] WARNING: CPU: 1 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) 
| [   19.444243][  T307] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   19.445356][  T307] Tainted: [W]=WARN
[   19.445611][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.446040][ 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) 
[ 19.446388][ 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
[   19.447582][  T307] RSP: 0018:ffffc900009d6ef0 EFLAGS: 00010246
[   19.448022][  T307] RAX: 0000000000000000 RBX: ffff8880059f2000 RCX: 0000000000000001
[   19.448526][  T307] RDX: 0000000000000000 RSI: ffffffffb269b941 RDI: ffffffffb1e555e0
[   19.449019][  T307] RBP: ffffc900009d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.449508][  T307] R10: ffffc900009d7010 R11: ffffffffb34a8918 R12: 1ffff9200013ade2
[   19.450003][  T307] R13: 00000000000005dc R14: ffffc900009d7010 R15: ffff8880059f2f08
[   19.450486][  T307] FS:  00007f516b581800(0000) GS:ffff88807ad37000(0000) knlGS:0000000000000000
[   19.451055][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.451460][  T307] CR2: 00000000004e5ab0 CR3: 000000000cd22005 CR4: 0000000000772ef0
[   19.451959][  T307] PKRU: 55555554
[   19.452201][  T307] Call Trace:
[   19.452456][  T307]  <TASK>
[ 19.452626][ T307] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.452983][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.453318][ T307] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.453644][ T307] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.454057][ T307] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.454396][ T307] netif_set_mtu (net/core/dev.c:9652) 
[ 19.454731][ T307] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.455085][ T307] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.455546][ T307] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.455793][ T307] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.456262][ T307] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.456634][ T307] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.456970][ T307] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.457306][ T307] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.457715][ T307] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.458074][ T307] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.458397][ T307] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.458736][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.459083][ 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) 
[ 19.459419][ T307] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.459825][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.460172][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.460495][ T307] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.460819][ T307] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.461164][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.461489][ T307] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.461820][ T307] ? __create_object (mm/kmemleak.c:771) 
[ 19.462161][ T307] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.462489][ T307] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.462808][ T307] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.463217][ T307] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.463544][ T307] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.463908][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.464231][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.464559][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.464897][ T307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.465216][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.465541][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.465872][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.466221][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.466547][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.466891][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.467220][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.467548][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.467898][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.468224][ 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) 
[ 19.468549][ T307] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.468890][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.469212][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.469538][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.469904][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.470243][ T307] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.470594][ T307] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.470962][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.471306][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.471750][ T307] ___sys_sendmsg (net/socket.c:2670) 
[ 19.472099][ T307] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.472449][ 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) 
[ 19.472884][ T307] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.473220][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.473573][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.473924][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.474254][ 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) 
[ 19.474577][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.474926][ T307] __sys_sendmsg (net/socket.c:2700) 
[ 19.475245][ T307] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.475639][ T307] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.475983][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.476320][ T307] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.476646][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.477059][  T307] RIP: 0033:0x7f516b74e1e7
[ 19.477395][ 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)
[   19.478548][  T307] RSP: 002b:00007ffe34e67f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.479049][  T307] RAX: ffffffffffffffda RBX: 00007ffe34e686c0 RCX: 00007f516b74e1e7
[   19.479543][  T307] RDX: 0000000000000000 RSI: 00007ffe34e68000 RDI: 0000000000000005
[   19.480039][  T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.480525][  T307] R10: 00000000220b3910 R11: 0000000000000246 R12: 0000000000000004
[   19.481028][  T307] R13: 00000000686e218e R14: 0000000000499600 R15: 0000000000000000
| [   42.703160][  T510] ------------[ cut here ]------------
| [ 42.703482][ T510] WARNING: CPU: 1 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) 
| [   42.704102][  T510] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   42.705301][  T510] Tainted: [W]=WARN
[   42.705541][  T510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.705944][ 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) 
[ 42.706272][ 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
[   42.707665][  T510] RSP: 0018:ffffc90000db6f70 EFLAGS: 00010246
[   42.708253][  T510] RAX: 0000000000000000 RBX: ffff8880059f2000 RCX: 0000000000000001
[   42.708711][  T510] RDX: 0000000000000000 RSI: ffffffffb269b941 RDI: ffffffffb1e555e0
[   42.709288][  T510] RBP: ffffc90000db7058 R08: 0000000000000000 R09: 0000000000000000
[   42.709746][  T510] R10: ffffc90000db7088 R11: ffffffffaea00130 R12: 1ffff920001b6df2
[   42.710217][  T510] R13: 00000000000005dc R14: ffffc90000db7088 R15: ffff8880059f2f08
[   42.710676][  T510] FS:  00007f01f24a6800(0000) GS:ffff88807ad37000(0000) knlGS:0000000000000000
[   42.711245][  T510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.711635][  T510] CR2: 00000000004e5ab0 CR3: 000000000c422005 CR4: 0000000000772ef0
[   42.712107][  T510] PKRU: 55555554
[   42.712383][  T510] Call Trace:
[   42.712626][  T510]  <TASK>
[ 42.712787][ 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) 
[ 42.713202][ T510] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 42.713556][ T510] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.713879][ T510] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.714184][ T510] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.714492][ T510] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.714807][ T510] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.715120][ T510] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.715430][ T510] ? ___sys_sendmsg (net/socket.c:2670) 
[ 42.715749][ T510] ? __sys_sendmsg (net/socket.c:2700) 
[ 42.716070][ T510] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.716393][ T510] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 42.716772][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.717096][ T510] netif_set_mtu (net/core/dev.c:9652) 
[ 42.717405][ T510] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.717729][ T510] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.717972][ T510] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 42.718397][ T510] br_del_if (net/bridge/br_if.c:743) bridge 
[ 42.718736][ T510] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 42.719049][ T510] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.719361][ T510] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.719667][ T510] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.720081][ T510] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.720391][ T510] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.720699][ T510] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.721050][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.721359][ 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) 
[ 42.721664][ T510] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.722057][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.722364][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.722671][ T510] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.722992][ T510] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.723305][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.723614][ T510] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.723933][ T510] ? __create_object (mm/kmemleak.c:771) 
[ 42.724250][ T510] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.724561][ T510] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.724881][ T510] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.725268][ T510] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.725588][ T510] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.725912][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.726237][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.726549][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.726874][ T510] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.727181][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.727486][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.727790][ T510] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.728117][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.728428][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.728736][ T510] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.729058][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.729365][ T510] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.729682][ T510] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.730008][ 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) 
[ 42.730333][ T510] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.730643][ T510] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.730955][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.731265][ T510] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.731575][ T510] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.731889][ T510] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.732212][ T510] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.732522][ T510] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.732824][ T510] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.733224][ T510] ___sys_sendmsg (net/socket.c:2670) 
[ 42.733527][ T510] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.733873][ 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) 
[ 42.734273][ T510] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.734583][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.734913][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.735226][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.735530][ 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) 
[ 42.735834][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.736168][ T510] __sys_sendmsg (net/socket.c:2700) 
[ 42.736473][ T510] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.736863][ T510] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.737195][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.737507][ T510] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.737816][ T510] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.738211][  T510] RIP: 0033:0x7f01f26731e7
[ 42.738536][ 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)
[   42.739689][  T510] RSP: 002b:00007ffd1fc88d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.740168][  T510] RAX: ffffffffffffffda RBX: 00007ffd1fc89490 RCX: 00007f01f26731e7
[   42.740627][  T510] RDX: 0000000000000000 RSI: 00007ffd1fc88dd0 RDI: 0000000000000005
[   42.741093][  T510] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   42.741560][  T510] R10: 00007f01f2570ee8 R11: 0000000000000246 R12: 0000000000000003
[   42.742030][  T510] R13: 00000000686e21a5 R14: 0000000000499600 R15: 0000000000000000
| [   42.980131][  T512] ------------[ cut here ]------------
| [ 42.980491][ T512] WARNING: CPU: 2 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) 
| [   42.981193][  T512] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   42.982465][  T512] Tainted: [W]=WARN
[   42.982711][  T512] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.983116][ 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) 
[ 42.983459][ 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
[   42.984578][  T512] RSP: 0018:ffffc90000be6f70 EFLAGS: 00010246
[   42.984995][  T512] RAX: 0000000000000000 RBX: ffff8880059f2000 RCX: 0000000000000001
[   42.985479][  T512] RDX: 0000000000000000 RSI: ffffffffb269b941 RDI: ffffffffb1e555e0
[   42.985972][  T512] RBP: ffffc90000be7058 R08: 0000000000000000 R09: 0000000000000000
[   42.986462][  T512] R10: ffffc90000be7088 R11: ffffffffb2b79160 R12: 1ffff9200017cdf2
[   42.986947][  T512] R13: 00000000000005dc R14: ffffc90000be7088 R15: ffff8880059f2f08
[   42.987420][  T512] FS:  00007fed4b231800(0000) GS:ffff88807adb7000(0000) knlGS:0000000000000000
[   42.987986][  T512] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.988386][  T512] CR2: 00000000004e5aa8 CR3: 000000000c421004 CR4: 0000000000772ef0
[   42.988882][  T512] PKRU: 55555554
[   42.989132][  T512] Call Trace:
[   42.989380][  T512]  <TASK>
[ 42.989549][ 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) 
[ 42.990226][ T512] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 42.990819][ T512] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.991309][ T512] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.991803][ T512] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.992394][ T512] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 42.993256][ T512] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.994158][ T512] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.994606][ T512] ? ___sys_sendmsg (net/socket.c:2670) 
[ 42.994942][ T512] ? __sys_sendmsg (net/socket.c:2700) 
[ 42.995255][ T512] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.995572][ T512] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 42.995969][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.996306][ T512] netif_set_mtu (net/core/dev.c:9652) 
[ 42.996624][ T512] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.996985][ T512] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.997238][ T512] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 42.997675][ T512] br_del_if (net/bridge/br_if.c:743) bridge 
[ 42.998041][ T512] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 42.998364][ T512] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 42.998683][ T512] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.999019][ T512] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.999417][ T512] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.999745][ T512] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 43.000072][ T512] ? __kernel_text_address (kernel/extable.c:79) 
[ 43.000396][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.000714][ 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) 
[ 43.001059][ T512] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 43.001454][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.001776][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.002109][ T512] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 43.002428][ T512] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 43.002746][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.003075][ T512] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.003386][ T512] ? __create_object (mm/kmemleak.c:771) 
[ 43.003706][ T512] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 43.004043][ T512] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 43.004361][ T512] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 43.004756][ T512] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 43.005109][ T512] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.005439][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.005754][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.006087][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.006418][ T512] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.006732][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.007063][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.007388][ T512] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.007714][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.008043][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.008370][ T512] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.008687][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.009028][ T512] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.009354][ T512] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.009677][ 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) 
[ 43.010004][ T512] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 43.010323][ T512] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.010636][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.010969][ T512] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.011288][ T512] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.011611][ T512] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.011950][ T512] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.012272][ T512] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.012589][ T512] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.013015][ T512] ___sys_sendmsg (net/socket.c:2670) 
[ 43.013336][ T512] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.013655][ 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) 
[ 43.014057][ T512] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.014387][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.014708][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.015044][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.015360][ 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) 
[ 43.015684][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.016021][ T512] __sys_sendmsg (net/socket.c:2700) 
[ 43.016352][ T512] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.016748][ T512] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.017103][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.017423][ T512] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.017742][ T512] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.018140][  T512] RIP: 0033:0x7fed4b3fe1e7
[ 43.018471][ 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)
[   43.019580][  T512] RSP: 002b:00007fffb8207788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.020063][  T512] RAX: ffffffffffffffda RBX: 00007fffb8207eb0 RCX: 00007fed4b3fe1e7
[   43.020530][  T512] RDX: 0000000000000000 RSI: 00007fffb82077f0 RDI: 0000000000000005
[   43.021019][  T512] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   43.021499][  T512] R10: 00007fed4b2fbee8 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