======================================
| [   20.241869][  T319] veth1: entered promiscuous mode
| [   20.244190][  T319] ------------[ cut here ]------------
| [ 20.246202][ T319] WARNING: CPU: 1 PID: 319 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   20.247635][  T319] Modules linked in: bridge stp llc sch_ingress vrf veth
[   20.250022][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.250723][ T319] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 20.251288][ T319] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.253253][  T319] RSP: 0018:ffffc90000576ef0 EFLAGS: 00010246
[   20.253993][  T319] RAX: 0000000000000000 RBX: ffff888004fea000 RCX: 0000000000000001
[   20.254816][  T319] RDX: 0000000000000000 RSI: ffffffff8909b941 RDI: ffffffff888555e0
[   20.255372][  T319] RBP: ffffc90000576fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.255840][  T319] R10: ffffc90000577010 R11: ffffffff89ea8918 R12: 1ffff920000aede2
[   20.256307][  T319] R13: 00000000000005dc R14: ffffc90000577010 R15: ffff888004feaf08
[   20.256782][  T319] FS:  00007f30d7c09800(0000) GS:ffff8880ab137000(0000) knlGS:0000000000000000
[   20.257321][  T319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.257711][  T319] CR2: 00000000004e5aa8 CR3: 000000000dfbe001 CR4: 0000000000772ef0
[   20.258233][  T319] PKRU: 55555554
[   20.258475][  T319] Call Trace:
[   20.258704][  T319]  <TASK>
[ 20.258870][ T319] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.259178][ T319] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.259501][ T319] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.259806][ T319] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.260185][ T319] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.260500][ T319] netif_set_mtu (net/core/dev.c:9652) 
[ 20.260992][ T319] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.261309][ T319] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.261746][ T319] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.261982][ T319] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.262399][ T319] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.262766][ T319] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.263075][ T319] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.263383][ T319] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.263776][ T319] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.264082][ T319] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.264388][ T319] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.264703][ T319] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.265010][ T319] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 20.265315][ T319] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.265706][ T319] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.266015][ T319] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.266318][ T319] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.266638][ T319] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.266948][ T319] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.267254][ T319] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.267562][ T319] ? __create_object (mm/kmemleak.c:771) 
[ 20.267878][ T319] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.268257][ T319] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.268827][ T319] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.269528][ T319] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.270099][ T319] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.270681][ T319] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.271234][ T319] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.271819][ T319] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.272371][ T319] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.272931][ T319] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.273505][ T319] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.274065][ T319] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.274636][ T319] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.275200][ T319] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.275780][ T319] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.276331][ T319] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.276909][ T319] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.277507][ T319] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.278168][ T319] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 20.278762][ T319] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.279331][ T319] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.279894][ T319] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.280485][ T319] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.281051][ T319] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.281620][ T319] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.282193][ T319] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.282790][ T319] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.283346][ T319] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.284073][ T319] ___sys_sendmsg (net/socket.c:2670) 
[ 20.284640][ T319] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.285193][ T319] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 20.285901][ T319] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.286492][ T319] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.287060][ T319] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.287640][ T319] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.288209][ T319] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.288775][ T319] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.289347][ T319] __sys_sendmsg (net/socket.c:2700) 
[ 20.289911][ T319] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.290612][ T319] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.291201][ T319] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.291771][ T319] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.292330][ T319] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.293026][  T319] RIP: 0033:0x7f30d7dd61e7
[ 20.293616][ T319] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   20.295649][  T319] RSP: 002b:00007ffdcecf00a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.296502][  T319] RAX: ffffffffffffffda RBX: 00007ffdcecf07d0 RCX: 00007f30d7dd61e7
[   20.297334][  T319] RDX: 0000000000000000 RSI: 00007ffdcecf0110 RDI: 0000000000000005
[   20.298169][  T319] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.298675][  T319] R10: 000000002b04b910 R11: 0000000000000246 R12: 0000000000000004
[   20.299137][  T319] R13: 00000000686e47de R14: 0000000000499600 R15: 0000000000000000
| [   20.539249][  T321] ------------[ cut here ]------------
| [ 20.539584][ T321] WARNING: CPU: 3 PID: 321 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   20.540199][  T321] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   20.542187][  T321] Tainted: [W]=WARN
[   20.542600][  T321] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.542995][ T321] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 20.543309][ T321] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.544578][  T321] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[   20.544983][  T321] RAX: 0000000000000000 RBX: ffff888004fea000 RCX: 0000000000000001
[   20.545445][  T321] RDX: 0000000000000000 RSI: ffffffff8909b941 RDI: ffffffff888555e0
[   20.545913][  T321] RBP: ffffc900005d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.546377][  T321] R10: ffffc900005d7010 R11: ffffffff89ea8918 R12: 1ffff920000bade2
[   20.546843][  T321] R13: 00000000000005dc R14: ffffc900005d7010 R15: ffff888004feaf08
[   20.547312][  T321] FS:  00007fe46bc33800(0000) GS:ffff8880ab237000(0000) knlGS:0000000000000000
[   20.547866][  T321] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.548281][  T321] CR2: 00000000004e5ab0 CR3: 000000000dfbd001 CR4: 0000000000772ef0
[   20.548751][  T321] PKRU: 55555554
[   20.548990][  T321] Call Trace:
[   20.549225][  T321]  <TASK>
[ 20.549386][ T321] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.549705][ T321] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.550024][ T321] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.550334][ T321] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.550746][ T321] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.551066][ T321] netif_set_mtu (net/core/dev.c:9652) 
[ 20.551375][ T321] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.551701][ T321] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.552144][ T321] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.552380][ T321] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.552818][ T321] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.553187][ T321] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.553509][ T321] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.553820][ T321] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.554219][ T321] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.554541][ T321] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.554844][ T321] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.555167][ T321] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.555498][ T321] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 20.555806][ T321] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.556188][ T321] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.556517][ T321] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.556821][ T321] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.557124][ T321] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.557460][ T321] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.557768][ T321] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.558078][ T321] ? __create_object (mm/kmemleak.c:771) 
[ 20.558400][ T321] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.558718][ T321] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.559022][ T321] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.559413][ T321] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.559736][ T321] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.560055][ T321] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.560374][ T321] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.560719][ T321] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.561035][ T321] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.561345][ T321] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.561669][ T321] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.561974][ T321] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.562279][ T321] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.562617][ T321] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.562930][ T321] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.563236][ T321] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.563572][ T321] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.563890][ T321] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.564193][ T321] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 20.564528][ T321] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.564844][ T321] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.565150][ T321] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.565475][ T321] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.565793][ T321] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.566100][ T321] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.566410][ T321] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.566743][ T321] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.567052][ T321] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.567452][ T321] ___sys_sendmsg (net/socket.c:2670) 
[ 20.567772][ T321] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.568090][ T321] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 20.568485][ T321] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.568806][ T321] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.569112][ T321] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.569435][ T321] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.569758][ T321] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.570061][ T321] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.570373][ T321] __sys_sendmsg (net/socket.c:2700) 
[ 20.570701][ T321] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.571075][ T321] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.571391][ T321] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.571738][ T321] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.572045][ T321] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.572440][  T321] RIP: 0033:0x7fe46be001e7
[ 20.572768][ T321] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   20.573981][  T321] RSP: 002b:00007ffee23de3c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.574457][  T321] RAX: ffffffffffffffda RBX: 00007ffee23deaf0 RCX: 00007fe46be001e7
[   20.574931][  T321] RDX: 0000000000000000 RSI: 00007ffee23de430 RDI: 0000000000000005
[   20.575385][  T321] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.575869][  T321] R10: 0000000033c5b910 R11: 0000000000000246 R12: 0000000000000004


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