======================================
| [   19.588419][  T310] veth1: entered promiscuous mode
| [   19.590783][  T310] ------------[ cut here ]------------
| [ 19.591153][ 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) 
| [   19.591809][  T310] Modules linked in: bridge stp llc 8021q vrf veth
[   19.592887][  T310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.593318][ 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) 
[ 19.593838][ T310] 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
[   19.594959][  T310] RSP: 0018:ffffc90000626ef0 EFLAGS: 00010246
[   19.595398][  T310] RAX: 0000000000000000 RBX: ffff88800a1a2000 RCX: 0000000000000001
[   19.595888][  T310] RDX: 0000000000000000 RSI: ffffffff87a9b941 RDI: ffffffff872555e0
[   19.596405][  T310] RBP: ffffc90000626fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.596884][  T310] R10: ffffc90000627010 R11: ffffffff888a8918 R12: 1ffff920000c4de2
[   19.597386][  T310] R13: 00000000000005dc R14: ffffc90000627010 R15: ffff88800a1a2f08
[   19.597888][  T310] FS:  00007f3e512d5800(0000) GS:ffff8880ac7b7000(0000) knlGS:0000000000000000
[   19.598468][  T310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.598878][  T310] CR2: 00000000004e5aa8 CR3: 0000000009225002 CR4: 0000000000772ef0
[   19.599391][  T310] PKRU: 55555554
[   19.599640][  T310] Call Trace:
[   19.599887][  T310]  <TASK>
[ 19.600077][ T310] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.600415][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.600774][ T310] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.601110][ T310] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.601534][ T310] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.601864][ T310] netif_set_mtu (net/core/dev.c:9652) 
[ 19.602218][ T310] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.602559][ T310] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.603030][ T310] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.603305][ T310] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.603746][ T310] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.604142][ T310] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.604474][ T310] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.604816][ T310] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.605235][ T310] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.605594][ T310] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.605915][ T310] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.606306][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.606631][ 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) 
[ 19.606949][ T310] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.607366][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.607713][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.608038][ T310] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.608373][ T310] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.608693][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.609014][ T310] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.609346][ T310] ? __create_object (mm/kmemleak.c:771) 
[ 19.609679][ T310] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.610007][ T310] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.610349][ T310] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.610744][ T310] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.611081][ T310] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.611406][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.611724][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.612091][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.612434][ T310] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.612763][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.613114][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.613454][ T310] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.613790][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.614122][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.614446][ T310] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.614772][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.615107][ T310] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.615451][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.615771][ 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) 
[ 19.616098][ T310] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.616425][ T310] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.616742][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.617082][ T310] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.617406][ T310] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.617739][ T310] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.618086][ T310] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.618422][ T310] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.618742][ T310] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.619175][ T310] ___sys_sendmsg (net/socket.c:2670) 
[ 19.619494][ T310] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.619832][ 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) 
[ 19.620238][ T310] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.620564][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.620888][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.621224][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.621544][ 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) 
[ 19.621871][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.622434][ T310] __sys_sendmsg (net/socket.c:2700) 
[ 19.622753][ T310] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.623153][ T310] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.623484][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.624294][ T310] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.624619][ T310] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.625019][  T310] RIP: 0033:0x7f3e514a21e7
[ 19.625386][ 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)
[   19.626769][  T310] RSP: 002b:00007fffb082c528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.627486][  T310] RAX: ffffffffffffffda RBX: 00007fffb082cc50 RCX: 00007f3e514a21e7
[   19.627971][  T310] RDX: 0000000000000000 RSI: 00007fffb082c590 RDI: 0000000000000005
[   19.628455][  T310] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.629171][  T310] R10: 0000000033e93910 R11: 0000000000000246 R12: 0000000000000004
[   19.629650][  T310] R13: 00000000686e1d12 R14: 0000000000499600 R15: 0000000000000000
| [   19.749983][  T312] ------------[ cut here ]------------
| [ 19.751375][ T312] WARNING: CPU: 3 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) 
| [   19.752000][  T312] Modules linked in: bridge stp llc 8021q vrf veth
| [   19.753069][  T312] Tainted: [W]=WARN
[   19.753308][  T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.753693][ 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) 
[ 19.754007][ T312] 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
[   19.755101][  T312] RSP: 0018:ffffc90000616ef0 EFLAGS: 00010246
[   19.755498][  T312] RAX: 0000000000000000 RBX: ffff88800a1a2000 RCX: 0000000000000001
[   19.755956][  T312] RDX: 0000000000000000 RSI: ffffffff87a9b941 RDI: ffffffff872555e0
[   19.756428][  T312] RBP: ffffc90000616fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.756887][  T312] R10: ffffc90000617010 R11: ffffffff888a8918 R12: 1ffff920000c2de2
[   19.757356][  T312] R13: 00000000000005dc R14: ffffc90000617010 R15: ffff88800a1a2f08
[   19.757811][  T312] FS:  00007f9afb070800(0000) GS:ffff8880ac837000(0000) knlGS:0000000000000000
[   19.758353][  T312] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.758748][  T312] CR2: 00000000004e5ab0 CR3: 000000000a821004 CR4: 0000000000772ef0
[   19.759214][  T312] PKRU: 55555554
[   19.759445][  T312] Call Trace:
[   19.759674][  T312]  <TASK>
[ 19.759832][ T312] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.760146][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.760462][ T312] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.760767][ T312] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.761153][ T312] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.761465][ T312] netif_set_mtu (net/core/dev.c:9652) 
[ 19.761770][ T312] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.762093][ T312] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.762524][ T312] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.762761][ T312] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.763193][ T312] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.763546][ T312] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.763856][ T312] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.764174][ T312] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.764563][ T312] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.764870][ T312] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.765187][ T312] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.765516][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.765827][ 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) 
[ 19.766143][ T312] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.766524][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.766832][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.767147][ T312] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.767456][ T312] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.767768][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.768081][ T312] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.768386][ T312] ? __create_object (mm/kmemleak.c:771) 
[ 19.768696][ T312] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.769003][ T312] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.769315][ T312] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.769698][ T312] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.770023][ T312] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.770343][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.770649][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.770962][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.771279][ T312] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.771583][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.771893][ T312] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.772208][ T312] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.772520][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.772829][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.773164][ T312] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.773473][ T312] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.773781][ T312] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.774106][ T312] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.774410][ 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) 
[ 19.774724][ T312] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.775035][ T312] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.775350][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.775672][ T312] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.775983][ T312] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.776297][ T312] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.776612][ T312] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.776929][ T312] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.777243][ T312] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.777636][ T312] ___sys_sendmsg (net/socket.c:2670) 
[ 19.777937][ T312] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.778247][ 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) 
[ 19.778628][ T312] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.778940][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.779264][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.779582][ T312] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.779889][ 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) 
[ 19.780204][ T312] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.780518][ T312] __sys_sendmsg (net/socket.c:2700) 
[ 19.780821][ T312] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.781205][ T312] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.781529][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.781837][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.782150][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.782533][  T312] RIP: 0033:0x7f9afb23d1e7
[ 19.782848][ 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)
[   19.783941][  T312] RSP: 002b:00007ffe9dd2e9a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.784418][  T312] RAX: ffffffffffffffda RBX: 00007ffe9dd2f0d0 RCX: 00007f9afb23d1e7
[   19.784877][  T312] RDX: 0000000000000000 RSI: 00007ffe9dd2ea10 RDI: 0000000000000005
[   19.785343][  T312] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.785815][  T312] R10: 0000000003a6d910 R11: 0000000000000246 R12: 0000000000000004


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