======================================
| [   19.372415][  T305] veth1: entered promiscuous mode
| [   19.374733][  T305] ------------[ cut here ]------------
| [ 19.375057][ T305] WARNING: CPU: 3 PID: 305 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) 
| [   19.376213][  T305] Modules linked in: bridge stp llc vrf veth
[   19.377259][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.377703][ T305] 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) 
[ 19.378030][ T305] 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
[   19.379172][  T305] RSP: 0018:ffffc90000b96ef0 EFLAGS: 00010246
[   19.379584][  T305] RAX: 0000000000000000 RBX: ffff88800b8ca000 RCX: 0000000000000001
[   19.380060][  T305] RDX: 0000000000000000 RSI: ffffffff8b29b941 RDI: ffffffff8aa555e0
[   19.380545][  T305] RBP: ffffc90000b96fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.381017][  T305] R10: ffffc90000b97010 R11: ffffffff8c0a8918 R12: 1ffff92000172de2
[   19.381522][  T305] R13: 00000000000005dc R14: ffffc90000b97010 R15: ffff88800b8caf08
[   19.381991][  T305] FS:  00007f2b80236800(0000) GS:ffff8880a9037000(0000) knlGS:0000000000000000
[   19.382602][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.382995][  T305] CR2: 00000000004e5aa8 CR3: 000000000961e001 CR4: 0000000000772ef0
[   19.383485][  T305] PKRU: 55555554
[   19.383730][  T305] Call Trace:
[   19.384130][  T305]  <TASK>
[ 19.384306][ T305] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.384628][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.384967][ T305] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.385272][ T305] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.385675][ T305] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.385981][ T305] netif_set_mtu (net/core/dev.c:9652) 
[ 19.386309][ T305] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.386669][ T305] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.387091][ T305] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.387334][ T305] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.387783][ T305] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.388134][ T305] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.388459][ T305] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.388768][ T305] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.389152][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.389479][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.389783][ T305] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.390102][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.390419][ T305] ? __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) 
[ 19.390725][ T305] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.391107][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.391464][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.391804][ T305] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.392113][ T305] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.392440][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.392751][ T305] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.393054][ T305] ? __create_object (mm/kmemleak.c:771) 
[ 19.393396][ T305] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.393702][ T305] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.394020][ T305] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.394408][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.394723][ T305] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.395032][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.395349][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.395664][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.395969][ T305] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.396274][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.396594][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.396900][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.397206][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.397524][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.397834][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.398150][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.398488][ T305] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.398817][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.399123][ T305] ? 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) 
[ 19.399442][ T305] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.399758][ T305] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.400060][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.400377][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.400684][ T305] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.400992][ T305] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.401322][ T305] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.401640][ T305] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.401946][ T305] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.402378][ T305] ___sys_sendmsg (net/socket.c:2670) 
[ 19.402683][ T305] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.402988][ T305] ? __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) 
[ 19.403381][ T305] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.403690][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.403996][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.404316][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.404623][ T305] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.404933][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.405247][ T305] __sys_sendmsg (net/socket.c:2700) 
[ 19.405563][ T305] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.405945][ T305] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.406263][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.406581][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.406889][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.407272][  T305] RIP: 0033:0x7f2b804031e7
[ 19.407601][ T305] 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)
[   19.408700][  T305] RSP: 002b:00007ffe97b85b68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.409166][  T305] RAX: ffffffffffffffda RBX: 00007ffe97b86290 RCX: 00007f2b804031e7
[   19.409637][  T305] RDX: 0000000000000000 RSI: 00007ffe97b85bd0 RDI: 0000000000000005
[   19.410103][  T305] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.410573][  T305] R10: 0000000012eac910 R11: 0000000000000246 R12: 0000000000000004
[   19.411031][  T305] R13: 00000000686e3f00 R14: 0000000000499600 R15: 0000000000000000
| [   19.654074][  T307] ------------[ cut here ]------------
| [ 19.654400][ T307] WARNING: CPU: 3 PID: 307 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.655000][  T307] Modules linked in: bridge stp llc vrf veth
| [   19.656015][  T307] Tainted: [W]=WARN
[   19.656251][  T307] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.656654][ T307] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.656969][ T307] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.658055][  T307] RSP: 0018:ffffc90000876ef0 EFLAGS: 00010246
[   19.658449][  T307] RAX: 0000000000000000 RBX: ffff88800b8ca000 RCX: 0000000000000001
[   19.658902][  T307] RDX: 0000000000000000 RSI: ffffffff8b29b941 RDI: ffffffff8aa555e0
[   19.659360][  T307] RBP: ffffc90000876fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.659811][  T307] R10: ffffc90000877010 R11: ffffffff8c0a8918 R12: 1ffff9200010ede2
[   19.660266][  T307] R13: 00000000000005dc R14: ffffc90000877010 R15: ffff88800b8caf08
[   19.660730][  T307] FS:  00007f6c3bad7800(0000) GS:ffff8880a9037000(0000) knlGS:0000000000000000
[   19.661308][  T307] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.661690][  T307] CR2: 00000000004e5ab0 CR3: 00000000096f2003 CR4: 0000000000772ef0
[   19.662146][  T307] PKRU: 55555554
[   19.662545][  T307] Call Trace:
[   19.662777][  T307]  <TASK>
[ 19.662936][ T307] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.663241][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.663558][ T307] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.663862][ T307] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.664239][ T307] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.664552][ T307] netif_set_mtu (net/core/dev.c:9652) 
[ 19.664856][ T307] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.665173][ T307] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.665600][ T307] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.665830][ T307] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.666238][ T307] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.666590][ T307] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.666896][ T307] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.667205][ T307] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.667599][ T307] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.667899][ T307] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.668199][ T307] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.668513][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.668821][ T307] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.669124][ T307] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.669531][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.669838][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.670140][ T307] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.670450][ T307] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.670754][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.671056][ T307] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.671362][ T307] ? __create_object (mm/kmemleak.c:771) 
[ 19.671668][ T307] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.671974][ T307] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.672295][ T307] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.672679][ T307] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.672987][ T307] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.673310][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.673616][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.673924][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.674232][ T307] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.674543][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.674849][ T307] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.675150][ T307] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.675462][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.675770][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.676077][ T307] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.676389][ T307] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.676695][ T307] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.677011][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.677321][ T307] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.677626][ T307] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.677935][ T307] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.678237][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.678555][ T307] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.678868][ T307] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.679174][ T307] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.679496][ T307] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.679810][ T307] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.680111][ T307] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.680510][ T307] ___sys_sendmsg (net/socket.c:2670) 
[ 19.680811][ T307] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.681117][ T307] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.681507][ T307] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.681813][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.682134][ T307] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.682480][ T307] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.682783][ T307] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.683085][ T307] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.683408][ T307] __sys_sendmsg (net/socket.c:2700) 
[ 19.683711][ T307] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.684086][ T307] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.684409][ T307] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.684713][ T307] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.685020][ T307] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.685406][  T307] RIP: 0033:0x7f6c3bca41e7
[ 19.685721][ T307] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.686808][  T307] RSP: 002b:00007ffd01134278 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.687270][  T307] RAX: ffffffffffffffda RBX: 00007ffd011349a0 RCX: 00007f6c3bca41e7
[   19.687744][  T307] RDX: 0000000000000000 RSI: 00007ffd011342e0 RDI: 0000000000000005
[   19.688199][  T307] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.688686][  T307] R10: 000000001b47e910 R11: 0000000000000246 R12: 0000000000000004
[   19.689143][  T307] R13: 00000000686e3f00 R14: 0000000000499600 R15: 0000000000000000
| [   54.725097][  T667] ------------[ cut here ]------------
| [ 54.725448][ T667] WARNING: CPU: 3 PID: 667 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) 
| [   54.726078][  T667] Modules linked in: act_skbedit cls_flower sch_prio sch_ingress bridge stp llc vrf veth
| [   54.727356][  T667] Tainted: [W]=WARN
[   54.727595][  T667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 54.727986][ T667] 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) 
[ 54.728319][ T667] 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
[   54.729441][  T667] RSP: 0018:ffffc90001056f70 EFLAGS: 00010246
[   54.729839][  T667] RAX: 0000000000000000 RBX: ffff88800b8ca000 RCX: 0000000000000001
[   54.730327][  T667] RDX: 0000000000000000 RSI: ffffffff8b29b941 RDI: ffffffff8aa555e0
[   54.730804][  T667] RBP: ffffc90001057058 R08: 0000000000000000 R09: 0000000000000000
[   54.731270][  T667] R10: ffffc90001057088 R11: ffffffff87600130 R12: 1ffff9200020adf2
[   54.731751][  T667] R13: 00000000000005dc R14: ffffc90001057088 R15: ffff88800b8caf08
[   54.732218][  T667] FS:  00007f6e3e1b7800(0000) GS:ffff8880a9037000(0000) knlGS:0000000000000000
[   54.732809][  T667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   54.733206][  T667] CR2: 00000000004e5ab0 CR3: 0000000004d35004 CR4: 0000000000772ef0
[   54.733696][  T667] PKRU: 55555554
[   54.733934][  T667] Call Trace:
[   54.734172][  T667]  <TASK>
[ 54.734363][ T667] ? __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) 
[ 54.734761][ T667] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 54.735149][ T667] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 54.735476][ T667] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.735796][ T667] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 54.736106][ T667] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.736440][ T667] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.736750][ T667] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.737063][ T667] ? ___sys_sendmsg (net/socket.c:2670) 
[ 54.737396][ T667] ? __sys_sendmsg (net/socket.c:2700) 
[ 54.737715][ T667] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.738025][ T667] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 54.738435][ T667] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.738761][ T667] netif_set_mtu (net/core/dev.c:9652) 
[ 54.739076][ T667] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 54.739422][ T667] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 54.739664][ T667] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 54.740095][ T667] br_del_if (net/bridge/br_if.c:743) bridge 
[ 54.740456][ T667] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 54.740772][ T667] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 54.741089][ T667] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 54.741419][ T667] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 54.741819][ T667] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 54.742132][ T667] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 54.742477][ T667] ? __kernel_text_address (kernel/extable.c:79) 
[ 54.742793][ T667] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.743109][ T667] ? __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) 
[ 54.743436][ T667] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 54.743822][ T667] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.744138][ T667] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.744462][ T667] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 54.744775][ T667] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 54.745086][ T667] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.745414][ T667] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 54.745724][ T667] ? __create_object (mm/kmemleak.c:771) 
[ 54.746039][ T667] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 54.746362][ T667] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 54.746672][ T667] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 54.747070][ T667] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 54.747399][ T667] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 54.747718][ T667] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.748029][ T667] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.748359][ T667] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.748670][ T667] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 54.748977][ T667] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.749310][ T667] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 54.749632][ T667] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 54.749946][ T667] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.750258][ T667] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.750593][ T667] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 54.750906][ T667] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 54.751219][ T667] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 54.751550][ T667] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 54.751866][ T667] ? 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) 
[ 54.752181][ T667] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 54.752523][ T667] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 54.752836][ T667] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.753152][ T667] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 54.753484][ T667] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 54.753801][ T667] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 54.754120][ T667] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 54.754453][ T667] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 54.754762][ T667] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 54.755161][ T667] ___sys_sendmsg (net/socket.c:2670) 
[ 54.755482][ T667] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 54.755797][ T667] ? __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) 
[ 54.756182][ T667] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 54.756515][ T667] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.756831][ T667] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 54.757151][ T667] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 54.757475][ T667] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 54.757788][ T667] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 54.758105][ T667] __sys_sendmsg (net/socket.c:2700) 
[ 54.758427][ T667] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 54.758816][ T667] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 54.759149][ T667] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 54.759475][ T667] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 54.759787][ T667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   54.760172][  T667] RIP: 0033:0x7f6e3e3841e7
[ 54.760515][ T667] 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)
[   54.761637][  T667] RSP: 002b:00007ffc6af04ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   54.762107][  T667] RAX: ffffffffffffffda RBX: 00007ffc6af05410 RCX: 00007f6e3e3841e7
[   54.762604][  T667] RDX: 0000000000000000 RSI: 00007ffc6af04d50 RDI: 0000000000000005
[   54.763071][  T667] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   54.763552][  T667] R10: 00007f6e3e281ee8 R11: 0000000000000246 R12: 0000000000000003
[   54.764027][  T667] R13: 00000000686e3f23 R14: 0000000000499600 R15: 0000000000000000
| [   54.998949][  T669] ------------[ cut here ]------------
| [ 54.999800][ T669] WARNING: CPU: 3 PID: 669 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) 
| [   55.000449][  T669] Modules linked in: act_skbedit cls_flower sch_prio sch_ingress bridge stp llc vrf veth
| [   55.001668][  T669] Tainted: [W]=WARN
[   55.001905][  T669] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 55.002318][ T669] 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) 
[ 55.002656][ T669] 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
[   55.003781][  T669] RSP: 0018:ffffc90001076f70 EFLAGS: 00010246
[   55.004176][  T669] RAX: 0000000000000000 RBX: ffff88800b8ca000 RCX: 0000000000000001
[   55.004658][  T669] RDX: 0000000000000000 RSI: ffffffff8b29b941 RDI: ffffffff8aa555e0
[   55.005126][  T669] RBP: ffffc90001077058 R08: 0000000000000000 R09: 0000000000000000
[   55.005601][  T669] R10: ffffc90001077088 R11: ffffffff8b779160 R12: 1ffff9200020edf2
[   55.006068][  T669] R13: 00000000000005dc R14: ffffc90001077088 R15: ffff88800b8caf08
[   55.006546][  T669] FS:  00007f057a102800(0000) GS:ffff8880a9037000(0000) knlGS:0000000000000000
[   55.007099][  T669] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.007501][  T669] CR2: 00000000004e5aa8 CR3: 000000000aba4006 CR4: 0000000000772ef0
[   55.007973][  T669] PKRU: 55555554
[   55.008207][  T669] Call Trace:
[   55.008453][  T669]  <TASK>
[ 55.008614][ T669] ? __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) 
[ 55.009013][ T669] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 55.009376][ T669] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 55.009689][ T669] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.010000][ T669] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 55.010320][ T669] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.010634][ T669] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.010946][ T669] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.011265][ T669] ? ___sys_sendmsg (net/socket.c:2670) 
[ 55.011589][ T669] ? __sys_sendmsg (net/socket.c:2700) 
[ 55.011897][ T669] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.012208][ T669] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 55.012622][ T669] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.012943][ T669] netif_set_mtu (net/core/dev.c:9652) 
[ 55.013258][ T669] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 55.013599][ T669] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 55.013847][ T669] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 55.014269][ T669] br_del_if (net/bridge/br_if.c:743) bridge 
[ 55.014627][ T669] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 55.014938][ T669] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 55.015253][ T669] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.015584][ T669] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 55.015977][ T669] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 55.016326][ T669] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 55.016644][ T669] ? __kernel_text_address (kernel/extable.c:79) 
[ 55.016962][ T669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.017276][ T669] ? __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) 
[ 55.017609][ T669] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 55.017995][ T669] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.018321][ T669] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.018642][ T669] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 55.018951][ T669] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 55.019261][ T669] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.019585][ T669] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 55.019895][ T669] ? __create_object (mm/kmemleak.c:771) 
[ 55.020212][ T669] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 55.020539][ T669] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 55.020853][ T669] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 55.021248][ T669] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 55.021579][ T669] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 55.021897][ T669] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.022206][ T669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.022546][ T669] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.022860][ T669] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 55.023171][ T669] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.023497][ T669] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.023817][ T669] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 55.024133][ T669] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.024464][ T669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.024782][ T669] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 55.025096][ T669] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.025423][ T669] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 55.025748][ T669] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 55.026064][ T669] ? 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) 
[ 55.026389][ T669] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.026707][ T669] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 55.027018][ T669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.027360][ T669] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.027676][ T669] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 55.027992][ T669] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 55.028332][ T669] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.028649][ T669] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 55.028962][ T669] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 55.029374][ T669] ___sys_sendmsg (net/socket.c:2670) 
[ 55.029685][ T669] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 55.029993][ T669] ? __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) 
[ 55.030394][ T669] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 55.030718][ T669] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.031033][ T669] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.031363][ T669] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.031681][ T669] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 55.031992][ T669] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.032343][ T669] __sys_sendmsg (net/socket.c:2700) 
[ 55.032655][ T669] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 55.033047][ T669] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 55.033386][ T669] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.033704][ T669] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.034018][ T669] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   55.034419][  T669] RIP: 0033:0x7f057a2cf1e7
[ 55.034744][ T669] 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)
[   55.035870][  T669] RSP: 002b:00007ffd8c3328a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   55.036360][  T669] RAX: ffffffffffffffda RBX: 00007ffd8c332fd0 RCX: 00007f057a2cf1e7
[   55.036833][  T669] RDX: 0000000000000000 RSI: 00007ffd8c332910 RDI: 0000000000000005
[   55.037312][  T669] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   55.037787][  T669] R10: 00007f057a1ccee8 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