======================================
| [   19.893881][  T310] veth1: entered promiscuous mode
| [   19.896811][  T310] ------------[ cut here ]------------
| [ 19.897160][ T310] WARNING: CPU: 2 PID: 310 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) 
| [   19.897808][  T310] Modules linked in: bridge stp llc 8021q vrf veth
[   19.898913][  T310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.899313][ T310] 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) 
[ 19.899667][ T310] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   19.900975][  T310] RSP: 0018:ffffc900006b6ef0 EFLAGS: 00010246
[   19.901392][  T310] RAX: 0000000000000000 RBX: ffff888009a22000 RCX: 0000000000000001
[   19.901872][  T310] RDX: 0000000000000000 RSI: ffffffff9289b939 RDI: ffffffff920555e0
[   19.902364][  T310] RBP: ffffc900006b6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.902838][  T310] R10: ffffc900006b7010 R11: ffffffff936a8918 R12: 1ffff920000d6de2
[   19.903324][  T310] R13: 00000000000005dc R14: ffffc900006b7010 R15: ffff888009a22f08
[   19.903813][  T310] FS:  00007f795e006800(0000) GS:ffff8880a19b7000(0000) knlGS:0000000000000000
[   19.904374][  T310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.904777][  T310] CR2: 00000000004e5aa8 CR3: 0000000009222001 CR4: 0000000000772ef0
[   19.905268][  T310] PKRU: 55555554
[   19.905524][  T310] Call Trace:
[   19.905771][  T310]  <TASK>
[ 19.905960][ T310] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.906288][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.906626][ T310] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.906950][ T310] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.907362][ T310] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.907689][ T310] netif_set_mtu (net/core/dev.c:9652) 
[ 19.908014][ T310] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.908355][ T310] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.908810][ T310] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.909079][ T310] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.909528][ T310] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.909904][ T310] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.910236][ T310] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.910575][ T310] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.910978][ T310] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.911307][ T310] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.911635][ T310] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.911969][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.912295][ T310] ? __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) 
[ 19.912649][ T310] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.913046][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.913383][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.913705][ T310] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.914027][ T310] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.914363][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.914686][ T310] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.915004][ T310] ? __create_object (mm/kmemleak.c:771) 
[ 19.915340][ T310] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.915663][ T310] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.915987][ T310] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.916392][ T310] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.916735][ T310] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.917064][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.917393][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.917724][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.918050][ T310] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.918376][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.918707][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.919042][ T310] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.919386][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.919713][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.920037][ T310] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.920367][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.920694][ T310] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.921030][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.921370][ T310] ? 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) 
[ 19.921698][ T310] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.922023][ T310] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.922350][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.922680][ T310] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.923005][ T310] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.923337][ T310] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.923666][ T310] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.923996][ T310] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.924317][ T310] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.924734][ T310] ___sys_sendmsg (net/socket.c:2670) 
[ 19.925054][ T310] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.925383][ T310] ? __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) 
[ 19.925781][ T310] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.926105][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.926444][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.926771][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.927093][ T310] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.927421][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.927752][ T310] __sys_sendmsg (net/socket.c:2700) 
[ 19.928070][ T310] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.928479][ T310] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.928816][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.929155][ T310] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.929485][ T310] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.929885][  T310] RIP: 0033:0x7f795e1d31e7
[ 19.930222][ T310] 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)
[   19.931372][  T310] RSP: 002b:00007ffc22509188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.931859][  T310] RAX: ffffffffffffffda RBX: 00007ffc225098b0 RCX: 00007f795e1d31e7
[   19.932348][  T310] RDX: 0000000000000000 RSI: 00007ffc225091f0 RDI: 0000000000000005
[   19.932833][  T310] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.933337][  T310] R10: 0000000027cc3910 R11: 0000000000000246 R12: 0000000000000004
[   19.933820][  T310] R13: 00000000686e7132 R14: 0000000000499600 R15: 0000000000000000
| [   20.061579][  T312] ------------[ cut here ]------------
| [ 20.061916][ T312] WARNING: CPU: 2 PID: 312 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) 
| [   20.062561][  T312] Modules linked in: bridge stp llc 8021q vrf veth
| [   20.063628][  T312] Tainted: [W]=WARN
[   20.063879][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.064272][ T312] 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) 
[ 20.064620][ T312] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   20.065780][  T312] RSP: 0018:ffffc90000686ef0 EFLAGS: 00010246
[   20.066187][  T312] RAX: 0000000000000000 RBX: ffff888009a22000 RCX: 0000000000000001
[   20.066680][  T312] RDX: 0000000000000000 RSI: ffffffff9289b939 RDI: ffffffff920555e0
[   20.067165][  T312] RBP: ffffc90000686fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.067647][  T312] R10: ffffc90000687010 R11: ffffffff936a8918 R12: 1ffff920000d0de2
[   20.068120][  T312] R13: 00000000000005dc R14: ffffc90000687010 R15: ffff888009a22f08
[   20.068619][  T312] FS:  00007f007f17c800(0000) GS:ffff8880a19b7000(0000) knlGS:0000000000000000
[   20.069213][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.069635][  T312] CR2: 00000000004e5ab0 CR3: 000000000ff39003 CR4: 0000000000772ef0
[   20.070116][  T312] PKRU: 55555554
[   20.070378][  T312] Call Trace:
[   20.070625][  T312]  <TASK>
[ 20.070802][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.071140][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.071488][ T312] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.071811][ T312] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.072219][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.072558][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 20.072882][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.073210][ T312] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.073678][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.073925][ T312] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.074392][ T312] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.074762][ T312] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 20.075090][ T312] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.075428][ T312] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.075831][ T312] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.076156][ T312] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.076486][ T312] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.076814][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.077136][ T312] ? __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) 
[ 20.077473][ T312] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.077867][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.078186][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.078526][ T312] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.078842][ T312] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.079182][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.079516][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.079836][ T312] ? __create_object (mm/kmemleak.c:771) 
[ 20.080159][ T312] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.080497][ T312] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.080819][ T312] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.081223][ T312] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.081564][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.081894][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.082213][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.082554][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.082876][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.083190][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.083531][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.083848][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.084169][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.084502][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.084828][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.085148][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.085491][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.085821][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.086147][ T312] ? 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) 
[ 20.086477][ T312] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.086798][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.087114][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.087449][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.087770][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.088091][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.088434][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.088759][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.089087][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.089507][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 20.089822][ T312] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.090141][ T312] ? __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) 
[ 20.090546][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.090875][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.091192][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.091527][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.091845][ T312] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.092164][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.092505][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 20.092822][ T312] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.093223][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.093568][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.093889][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.094209][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.094641][  T312] RIP: 0033:0x7f007f3491e7
[ 20.094975][ T312] 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)
[   20.096099][  T312] RSP: 002b:00007fff60c85fc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.096584][  T312] RAX: ffffffffffffffda RBX: 00007fff60c866f0 RCX: 00007f007f3491e7
[   20.097051][  T312] RDX: 0000000000000000 RSI: 00007fff60c86030 RDI: 0000000000000005
[   20.097536][  T312] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.098001][  T312] R10: 000000003fb21910 R11: 0000000000000246 R12: 0000000000000004


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