======================================
| [  249.160177][  T748] veth1: entered promiscuous mode
| [  249.162664][  T748] ------------[ cut here ]------------
| [ 249.163036][ T748] WARNING: CPU: 2 PID: 748 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) 
| [  249.163735][  T748] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth
[  249.166032][  T748] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 249.166457][ T748] 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) 
[ 249.166805][ T748] 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
[  249.167993][  T748] RSP: 0018:ffffc90000546ef0 EFLAGS: 00010246
[  249.168426][  T748] RAX: 0000000000000000 RBX: ffff88800b7fa000 RCX: 0000000000000001
[  249.168923][  T748] RDX: 0000000000000000 RSI: ffffffff8dc9b941 RDI: ffffffff8d4555e0
[  249.169432][  T748] RBP: ffffc90000546fe0 R08: 0000000000000000 R09: 0000000000000000
[  249.169930][  T748] R10: ffffc90000547010 R11: ffffffff8eaa8918 R12: 1ffff920000a8de2
[  249.170441][  T748] R13: 00000000000005dc R14: ffffc90000547010 R15: ffff88800b7faf08
[  249.170939][  T748] FS:  00007f0d00b7d800(0000) GS:ffff8880a65b7000(0000) knlGS:0000000000000000
[  249.171532][  T748] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  249.172288][  T748] CR2: 00000000004e5aa8 CR3: 0000000005172001 CR4: 0000000000772ef0
[  249.172799][  T748] PKRU: 55555554
[  249.173074][  T748] Call Trace:
[  249.173335][  T748]  <TASK>
[ 249.173532][ T748] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 249.173872][ T748] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.174226][ T748] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 249.174569][ T748] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 249.174985][ T748] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 249.175338][ T748] netif_set_mtu (net/core/dev.c:9652) 
[ 249.175676][ T748] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 249.176018][ T748] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 249.176515][ T748] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 249.176773][ T748] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 249.177239][ T748] br_add_if (net/bridge/br_if.c:697) bridge 
[ 249.177621][ T748] do_set_master (net/core/rtnetlink.c:2948) 
[ 249.177962][ T748] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 249.178313][ T748] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 249.178731][ T748] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 249.179074][ T748] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 249.179414][ T748] ? __kernel_text_address (kernel/extable.c:79) 
[ 249.179750][ T748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.180106][ T748] ? __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) 
[ 249.180445][ T748] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 249.180857][ T748] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.181212][ T748] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.181544][ T748] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 249.181885][ T748] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 249.182230][ T748] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.182564][ T748] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 249.182892][ T748] ? __create_object (mm/kmemleak.c:771) 
[ 249.183240][ T748] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 249.183587][ T748] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 249.183925][ T748] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 249.184359][ T748] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 249.184703][ T748] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 249.185037][ T748] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 249.185382][ T748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.185722][ T748] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.186057][ T748] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 249.186401][ T748] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.186741][ T748] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 249.187104][ T748] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 249.187448][ T748] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 249.187788][ T748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.188156][ T748] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 249.188493][ T748] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 249.188834][ T748] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 249.189213][ T748] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 249.189545][ T748] ? 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) 
[ 249.189889][ T748] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 249.190234][ T748] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 249.190562][ T748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.190899][ T748] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 249.191248][ T748] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 249.191580][ T748] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 249.191923][ T748] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 249.192286][ T748] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 249.192620][ T748] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 249.193041][ T748] ___sys_sendmsg (net/socket.c:2670) 
[ 249.193385][ T748] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 249.193728][ T748] ? __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) 
[ 249.194151][ T748] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 249.194490][ T748] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.194829][ T748] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.195179][ T748] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.195513][ T748] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 249.195843][ T748] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.196207][ T748] __sys_sendmsg (net/socket.c:2700) 
[ 249.196539][ T748] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 249.196951][ T748] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 249.197311][ T748] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.197647][ T748] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 249.197980][ T748] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  249.198399][  T748] RIP: 0033:0x7f0d00d4a1e7
[ 249.198752][ T748] 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)
[  249.199918][  T748] RSP: 002b:00007ffdf6d31a78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  249.200440][  T748] RAX: ffffffffffffffda RBX: 00007ffdf6d321a0 RCX: 00007f0d00d4a1e7
[  249.200937][  T748] RDX: 0000000000000000 RSI: 00007ffdf6d31ae0 RDI: 0000000000000005
[  249.201444][  T748] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  249.201945][  T748] R10: 0000000019612910 R11: 0000000000000246 R12: 0000000000000004
[  249.202452][  T748] R13: 00000000686e103a R14: 0000000000499600 R15: 0000000000000000
| [  249.441336][  T750] ------------[ cut here ]------------
| [ 249.441685][ T750] WARNING: CPU: 1 PID: 750 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) 
| [  249.442368][  T750] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth
| [  249.443854][  T750] Tainted: [W]=WARN
[  249.444120][  T750] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 249.444528][ T750] 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) 
[ 249.444865][ T750] 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
[  249.446527][  T750] RSP: 0018:ffffc90000596ef0 EFLAGS: 00010246
[  249.447269][  T750] RAX: 0000000000000000 RBX: ffff88800b7fa000 RCX: 0000000000000001
[  249.447779][  T750] RDX: 0000000000000000 RSI: ffffffff8dc9b941 RDI: ffffffff8d4555e0
[  249.448282][  T750] RBP: ffffc90000596fe0 R08: 0000000000000000 R09: 0000000000000000
[  249.448774][  T750] R10: ffffc90000597010 R11: ffffffff8eaa8918 R12: 1ffff920000b2de2
[  249.449269][  T750] R13: 00000000000005dc R14: ffffc90000597010 R15: ffff88800b7faf08
[  249.449762][  T750] FS:  00007f894bd4a800(0000) GS:ffff8880a6537000(0000) knlGS:0000000000000000
[  249.450345][  T750] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  249.450793][  T750] CR2: 00000000004e5ab0 CR3: 0000000005172003 CR4: 0000000000772ef0
[  249.451291][  T750] PKRU: 55555554
[  249.451551][  T750] Call Trace:
[  249.451823][  T750]  <TASK>
[ 249.451992][ T750] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 249.452334][ T750] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.452675][ T750] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 249.452999][ T750] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 249.453559][ T750] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 249.453891][ T750] netif_set_mtu (net/core/dev.c:9652) 
[ 249.454229][ T750] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 249.454591][ T750] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 249.455036][ T750] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 249.455286][ T750] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 249.455782][ T750] br_add_if (net/bridge/br_if.c:697) bridge 
[ 249.456162][ T750] do_set_master (net/core/rtnetlink.c:2948) 
[ 249.456478][ T750] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 249.456790][ T750] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 249.457190][ T750] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 249.457503][ T750] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 249.457813][ T750] ? __kernel_text_address (kernel/extable.c:79) 
[ 249.458134][ T750] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.458443][ T750] ? __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) 
[ 249.458750][ T750] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 249.459152][ T750] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.459468][ T750] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.459807][ T750] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 249.460130][ T750] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 249.460440][ T750] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.460749][ T750] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 249.461050][ T750] ? __create_object (mm/kmemleak.c:771) 
[ 249.461383][ T750] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 249.461689][ T750] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 249.461996][ T750] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 249.462392][ T750] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 249.462705][ T750] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 249.463015][ T750] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 249.463328][ T750] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.463653][ T750] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.463995][ T750] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 249.464310][ T750] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.464667][ T750] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 249.464995][ T750] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 249.465332][ T750] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 249.465658][ T750] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.466009][ T750] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 249.466349][ T750] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 249.466675][ T750] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 249.467009][ T750] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 249.467349][ T750] ? 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) 
[ 249.467671][ T750] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 249.468032][ T750] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 249.468368][ T750] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.468696][ T750] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 249.469024][ T750] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 249.469363][ T750] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 249.469707][ T750] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 249.470038][ T750] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 249.470401][ T750] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 249.470827][ T750] ___sys_sendmsg (net/socket.c:2670) 
[ 249.471163][ T750] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 249.471487][ T750] ? __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) 
[ 249.471920][ T750] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 249.472273][ T750] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.472603][ T750] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 249.472930][ T750] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 249.473264][ T750] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 249.473606][ T750] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 249.473935][ T750] __sys_sendmsg (net/socket.c:2700) 
[ 249.474264][ T750] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 249.474669][ T750] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 249.475041][ T750] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 249.475388][ T750] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 249.475729][ T750] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  249.476143][  T750] RIP: 0033:0x7f894bf171e7
[ 249.476481][ T750] 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)
[  249.477687][  T750] RSP: 002b:00007ffe8a0f6cf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  249.478186][  T750] RAX: ffffffffffffffda RBX: 00007ffe8a0f7420 RCX: 00007f894bf171e7
[  249.478677][  T750] RDX: 0000000000000000 RSI: 00007ffe8a0f6d60 RDI: 0000000000000005
[  249.479169][  T750] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[  249.479690][  T750] R10: 000000002439a910 R11: 0000000000000246 R12: 0000000000000004
[  249.480186][  T750] R13: 00000000686e103b R14: 0000000000499600 R15: 0000000000000000
| [  392.922025][ T2145] ------------[ cut here ]------------
| [ 392.922822][ T2145] WARNING: CPU: 2 PID: 2145 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) 
| [  392.923824][ T2145] Modules linked in: act_pedit bridge stp llc act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth
| [  392.926230][ T2145] Tainted: [W]=WARN
[  392.926540][ T2145] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 392.927033][ T2145] 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) 
[ 392.927471][ T2145] 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
[  392.928989][ T2145] RSP: 0018:ffffc90002deef70 EFLAGS: 00010246
[  392.929589][ T2145] RAX: 0000000000000000 RBX: ffff88800b7fa000 RCX: 0000000000000001
[  392.930285][ T2145] RDX: 0000000000000000 RSI: ffffffff8dc9b941 RDI: ffffffff8d4555e0
[  392.931146][ T2145] RBP: ffffc90002def058 R08: 0000000000000000 R09: 0000000000000000
[  392.931736][ T2145] R10: ffffc90002def088 R11: ffffffff8a000130 R12: 1ffff920005bddf2
[  392.932371][ T2145] R13: 00000000000005dc R14: ffffc90002def088 R15: ffff88800b7faf08
[  392.933055][ T2145] FS:  00007f5e2a877800(0000) GS:ffff8880a65b7000(0000) knlGS:0000000000000000
[  392.933933][ T2145] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  392.934393][ T2145] CR2: 00000000004e5ab0 CR3: 00000000117a4001 CR4: 0000000000772ef0
[  392.934896][ T2145] PKRU: 55555554
[  392.935176][ T2145] Call Trace:
[  392.935435][ T2145]  <TASK>
[ 392.935612][ T2145] ? __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) 
[ 392.936031][ T2145] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 392.936430][ T2145] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 392.936768][ T2145] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 392.937113][ T2145] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 392.937447][ T2145] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 392.937795][ T2145] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 392.938154][ T2145] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 392.938507][ T2145] ? ___sys_sendmsg (net/socket.c:2670) 
[ 392.938848][ T2145] ? __sys_sendmsg (net/socket.c:2700) 
[ 392.939191][ T2145] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 392.939531][ T2145] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 392.939943][ T2145] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 392.940301][ T2145] netif_set_mtu (net/core/dev.c:9652) 
[ 392.940649][ T2145] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 392.941006][ T2145] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 392.941276][ T2145] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 392.941742][ T2145] br_del_if (net/bridge/br_if.c:743) bridge 
[ 392.942139][ T2145] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 392.942482][ T2145] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 392.942820][ T2145] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 392.943178][ T2145] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 392.943615][ T2145] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 392.943955][ T2145] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 392.944327][ T2145] ? __kernel_text_address (kernel/extable.c:79) 
[ 392.944658][ T2145] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.944982][ T2145] ? __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) 
[ 392.945311][ T2145] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 392.945712][ T2145] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 392.946033][ T2145] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 392.946375][ T2145] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 392.946703][ T2145] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 392.947027][ T2145] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 392.947359][ T2145] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 392.947676][ T2145] ? __create_object (mm/kmemleak.c:771) 
[ 392.947996][ T2145] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 392.948334][ T2145] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 392.948658][ T2145] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 392.949051][ T2145] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 392.949386][ T2145] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 392.949714][ T2145] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 392.950030][ T2145] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.950379][ T2145] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 392.950705][ T2145] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 392.951027][ T2145] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 392.951361][ T2145] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 392.951678][ T2145] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 392.951995][ T2145] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 392.952328][ T2145] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.952653][ T2145] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 392.952975][ T2145] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 392.953313][ T2145] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 392.953656][ T2145] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 392.953973][ T2145] ? 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) 
[ 392.954322][ T2145] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 392.954642][ T2145] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 392.954960][ T2145] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.955296][ T2145] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 392.955625][ T2145] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 392.955942][ T2145] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 392.956280][ T2145] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 392.956600][ T2145] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 392.956916][ T2145] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 392.957351][ T2145] ___sys_sendmsg (net/socket.c:2670) 
[ 392.957856][ T2145] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 392.958411][ T2145] ? __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) 
[ 392.959042][ T2145] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 392.959529][ T2145] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 392.959854][ T2145] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 392.960398][ T2145] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 392.960929][ T2145] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 392.961470][ T2145] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 392.962013][ T2145] __sys_sendmsg (net/socket.c:2700) 
[ 392.962590][ T2145] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 392.963278][ T2145] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 392.963877][ T2145] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 392.964455][ T2145] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 392.965021][ T2145] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  392.965726][ T2145] RIP: 0033:0x7f5e2aa441e7
[ 392.966346][ T2145] 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)
[  392.968347][ T2145] RSP: 002b:00007ffe42ab6fb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  392.969127][ T2145] RAX: ffffffffffffffda RBX: 00007ffe42ab76e0 RCX: 00007f5e2aa441e7
[  392.969891][ T2145] RDX: 0000000000000000 RSI: 00007ffe42ab7020 RDI: 0000000000000005
[  392.970708][ T2145] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  392.971514][ T2145] R10: 00007f5e2a941ee8 R11: 0000000000000246 R12: 0000000000000003
[  392.972360][ T2145] R13: 00000000686e10ca R14: 0000000000499600 R15: 0000000000000000
| [  393.216955][ T2147] ------------[ cut here ]------------
| [ 393.218896][ T2147] WARNING: CPU: 1 PID: 2147 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) 
| [  393.219671][ T2147] Modules linked in: act_pedit bridge stp llc act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth
| [  393.221358][ T2147] Tainted: [W]=WARN
[  393.221590][ T2147] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 393.221966][ T2147] 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) 
[ 393.222288][ T2147] 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
[  393.223383][ T2147] RSP: 0018:ffffc90002dfef70 EFLAGS: 00010246
[  393.223780][ T2147] RAX: 0000000000000000 RBX: ffff88800b7fa000 RCX: 0000000000000001
[  393.224257][ T2147] RDX: 0000000000000000 RSI: ffffffff8dc9b941 RDI: ffffffff8d4555e0
[  393.224712][ T2147] RBP: ffffc90002dff058 R08: 0000000000000000 R09: 0000000000000000
[  393.225180][ T2147] R10: ffffc90002dff088 R11: ffffffff8e179160 R12: 1ffff920005bfdf2
[  393.225635][ T2147] R13: 00000000000005dc R14: ffffc90002dff088 R15: ffff88800b7faf08
[  393.226099][ T2147] FS:  00007f3b7f656800(0000) GS:ffff8880a6537000(0000) knlGS:0000000000000000
[  393.226630][ T2147] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  393.227011][ T2147] CR2: 00000000004e5aa8 CR3: 00000000117a4004 CR4: 0000000000772ef0
[  393.227481][ T2147] PKRU: 55555554
[  393.227711][ T2147] Call Trace:
[  393.227937][ T2147]  <TASK>
[ 393.228108][ T2147] ? __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) 
[ 393.228486][ T2147] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 393.228833][ T2147] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 393.229162][ T2147] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 393.229473][ T2147] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 393.229775][ T2147] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 393.230089][ T2147] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 393.230391][ T2147] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 393.230699][ T2147] ? ___sys_sendmsg (net/socket.c:2670) 
[ 393.231001][ T2147] ? __sys_sendmsg (net/socket.c:2700) 
[ 393.231332][ T2147] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 393.231638][ T2147] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 393.232022][ T2147] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.232358][ T2147] netif_set_mtu (net/core/dev.c:9652) 
[ 393.232674][ T2147] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 393.232995][ T2147] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 393.233234][ T2147] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 393.233666][ T2147] br_del_if (net/bridge/br_if.c:743) bridge 
[ 393.234005][ T2147] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 393.234316][ T2147] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 393.234629][ T2147] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 393.234937][ T2147] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 393.235330][ T2147] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 393.235635][ T2147] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 393.235937][ T2147] ? __kernel_text_address (kernel/extable.c:79) 
[ 393.236262][ T2147] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.236570][ T2147] ? __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) 
[ 393.236884][ T2147] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 393.237322][ T2147] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 393.237646][ T2147] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 393.237963][ T2147] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 393.238291][ T2147] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 393.238611][ T2147] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.238931][ T2147] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 393.239262][ T2147] ? __create_object (mm/kmemleak.c:771) 
[ 393.239586][ T2147] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 393.239907][ T2147] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 393.240245][ T2147] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 393.240652][ T2147] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 393.240979][ T2147] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 393.241313][ T2147] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 393.241636][ T2147] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.241971][ T2147] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.242301][ T2147] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 393.242623][ T2147] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 393.242945][ T2147] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 393.243273][ T2147] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 393.243606][ T2147] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 393.243932][ T2147] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.244286][ T2147] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 393.244611][ T2147] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 393.244933][ T2147] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 393.245271][ T2147] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 393.245591][ T2147] ? 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) 
[ 393.245914][ T2147] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 393.246243][ T2147] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 393.246571][ T2147] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.246895][ T2147] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 393.247227][ T2147] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 393.247551][ T2147] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 393.247878][ T2147] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 393.248219][ T2147] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 393.248542][ T2147] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 393.248960][ T2147] ___sys_sendmsg (net/socket.c:2670) 
[ 393.249311][ T2147] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 393.249636][ T2147] ? __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) 
[ 393.250041][ T2147] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 393.250376][ T2147] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.250702][ T2147] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 393.251031][ T2147] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 393.251363][ T2147] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 393.251690][ T2147] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 393.252018][ T2147] __sys_sendmsg (net/socket.c:2700) 
[ 393.252357][ T2147] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 393.252765][ T2147] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 393.253105][ T2147] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 393.253432][ T2147] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 393.253772][ T2147] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  393.254185][ T2147] RIP: 0033:0x7f3b7f8231e7
[ 393.254518][ T2147] 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)
[  393.255664][ T2147] RSP: 002b:00007fff126188c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  393.256167][ T2147] RAX: ffffffffffffffda RBX: 00007fff12618ff0 RCX: 00007f3b7f8231e7
[  393.256649][ T2147] RDX: 0000000000000000 RSI: 00007fff12618930 RDI: 0000000000000005
[  393.257131][ T2147] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  393.257611][ T2147] R10: 00007f3b7f720ee8 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