======================================
| [   76.884554][  T628] veth1: entered promiscuous mode
| [   76.886828][  T628] ------------[ cut here ]------------
| [ 76.887168][ T628] WARNING: CPU: 2 PID: 628 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) 
| [   76.887849][  T628] Modules linked in: bridge stp llc vrf macvlan veth
[   76.888936][  T628] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 76.889349][ T628] 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) 
[ 76.889694][ T628] 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
[   76.891787][  T628] RSP: 0018:ffffc90000ee6ef0 EFLAGS: 00010246
[   76.892223][  T628] RAX: 0000000000000000 RBX: ffff888008fe2000 RCX: 0000000000000001
[   76.892703][  T628] RDX: 0000000000000000 RSI: ffffffff92a9b941 RDI: ffffffff922555e0
[   76.893177][  T628] RBP: ffffc90000ee6fe0 R08: 0000000000000000 R09: 0000000000000000
[   76.893743][  T628] R10: ffffc90000ee7010 R11: ffffffff938a8918 R12: 1ffff920001dcde2
[   76.894225][  T628] R13: 00000000000005dc R14: ffffc90000ee7010 R15: ffff888008fe2f08
[   76.894711][  T628] FS:  00007f98d82a0800(0000) GS:ffff8880a17b7000(0000) knlGS:0000000000000000
[   76.895267][  T628] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   76.895681][  T628] CR2: 00000000004e5aa8 CR3: 00000000092c9002 CR4: 0000000000772ef0
[   76.896154][  T628] PKRU: 55555554
[   76.896406][  T628] Call Trace:
[   76.896669][  T628]  <TASK>
[ 76.896849][ T628] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 76.897178][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.897522][ T628] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 76.898056][ T628] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 76.898473][ T628] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 76.898813][ T628] netif_set_mtu (net/core/dev.c:9652) 
[ 76.899142][ T628] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 76.899480][ T628] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 76.899923][ T628] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 76.900165][ T628] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 76.900608][ T628] br_add_if (net/bridge/br_if.c:697) bridge 
[ 76.900973][ T628] do_set_master (net/core/rtnetlink.c:2948) 
[ 76.901297][ T628] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 76.901624][ T628] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 76.902033][ T628] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 76.902378][ T628] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 76.902701][ T628] ? __kernel_text_address (kernel/extable.c:79) 
[ 76.903032][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.903360][ T628] ? __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) 
[ 76.903678][ T628] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 76.904064][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.904391][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.904704][ T628] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 76.905019][ T628] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 76.905350][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.905671][ T628] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 76.905984][ T628] ? __create_object (mm/kmemleak.c:771) 
[ 76.906310][ T628] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 76.906637][ T628] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 76.906952][ T628] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 76.907349][ T628] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 76.907706][ T628] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 76.908035][ T628] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 76.908363][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.908707][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.909028][ T628] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 76.909354][ T628] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 76.909679][ T628] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 76.909995][ T628] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 76.910315][ T628] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 76.910654][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.910979][ T628] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 76.911305][ T628] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 76.911652][ T628] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 76.911980][ T628] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 76.912295][ T628] ? 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) 
[ 76.912628][ T628] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 76.912950][ T628] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 76.913265][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.913593][ T628] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 76.913914][ T628] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 76.914233][ T628] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 76.914571][ T628] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 76.914890][ T628] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 76.915224][ T628] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 76.915635][ T628] ___sys_sendmsg (net/socket.c:2670) 
[ 76.915950][ T628] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 76.916270][ T628] ? __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) 
[ 76.916674][ T628] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 76.916992][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.917311][ T628] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 76.917646][ T628] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 76.917961][ T628] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 76.918276][ T628] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 76.918614][ T628] __sys_sendmsg (net/socket.c:2700) 
[ 76.918929][ T628] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 76.919319][ T628] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 76.919670][ T628] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 76.920000][ T628] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 76.920324][ T628] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   76.920725][  T628] RIP: 0033:0x7f98d846d1e7
[ 76.921057][ T628] 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)
[   76.922184][  T628] RSP: 002b:00007ffe00ed4fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   76.922669][  T628] RAX: ffffffffffffffda RBX: 00007ffe00ed5710 RCX: 00007f98d846d1e7
[   76.923145][  T628] RDX: 0000000000000000 RSI: 00007ffe00ed5050 RDI: 0000000000000005
[   76.923627][  T628] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   76.924093][  T628] R10: 0000000028714910 R11: 0000000000000246 R12: 0000000000000003
[   76.924581][  T628] R13: 00000000686e183d R14: 0000000000499600 R15: 0000000000000000
| [  119.177809][  T847] ------------[ cut here ]------------
| [ 119.178114][ T847] WARNING: CPU: 1 PID: 847 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) 
| [  119.179728][  T847] Modules linked in: bridge stp llc vrf macvlan veth
| [  119.180782][  T847] Tainted: [W]=WARN
[  119.181020][  T847] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 119.181495][ T847] 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) 
[ 119.181817][ T847] 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
[  119.182949][  T847] RSP: 0018:ffffc90000a56ef0 EFLAGS: 00010246
[  119.183361][  T847] RAX: 0000000000000000 RBX: ffff888005052000 RCX: 0000000000000001
[  119.183826][  T847] RDX: 0000000000000000 RSI: ffffffff92a9b941 RDI: ffffffff922555e0
[  119.184407][  T847] RBP: ffffc90000a56fe0 R08: 0000000000000000 R09: 0000000000000000
[  119.184865][  T847] R10: ffffc90000a57010 R11: ffffffff938a8918 R12: 1ffff9200014ade2
[  119.185360][  T847] R13: 00000000000005dc R14: ffffc90000a57010 R15: ffff888005052f08
[  119.185981][  T847] FS:  00007f016cde2800(0000) GS:ffff8880a1737000(0000) knlGS:0000000000000000
[  119.186636][  T847] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  119.187079][  T847] CR2: 00000000004e5aa8 CR3: 00000000050cc004 CR4: 0000000000772ef0
[  119.187658][  T847] PKRU: 55555554
[  119.187986][  T847] Call Trace:
[  119.188235][  T847]  <TASK>
[ 119.188412][ T847] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 119.188818][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 119.189224][ T847] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 119.189708][ T847] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 119.190090][ T847] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 119.190479][ T847] netif_set_mtu (net/core/dev.c:9652) 
[ 119.190842][ T847] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 119.191183][ T847] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 119.191629][ T847] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 119.191861][ T847] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 119.192296][ T847] br_add_if (net/bridge/br_if.c:697) bridge 
[ 119.192665][ T847] do_set_master (net/core/rtnetlink.c:2948) 
[ 119.193060][ T847] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 119.193421][ T847] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 119.193826][ T847] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 119.194130][ T847] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 119.194471][ T847] ? __kernel_text_address (kernel/extable.c:79) 
[ 119.194884][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 119.195255][ T847] ? __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) 
[ 119.195607][ T847] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 119.196116][ T847] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.196537][ T847] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.196848][ T847] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 119.197156][ T847] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 119.197581][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 119.197892][ T847] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 119.198206][ T847] ? __create_object (mm/kmemleak.c:771) 
[ 119.198526][ T847] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 119.198877][ T847] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 119.199309][ T847] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 119.199702][ T847] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 119.200100][ T847] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 119.200440][ T847] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 119.200831][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 119.201259][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 119.201628][ T847] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 119.201984][ T847] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 119.202405][ T847] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 119.202728][ T847] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 119.203107][ T847] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 119.203439][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 119.203836][ T847] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 119.204142][ T847] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 119.204574][ T847] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 119.204899][ T847] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 119.205234][ T847] ? 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) 
[ 119.205885][ T847] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 119.206423][ T847] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 119.206783][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 119.207192][ T847] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 119.207522][ T847] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 119.207843][ T847] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 119.208161][ T847] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 119.208498][ T847] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 119.208853][ T847] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 119.209262][ T847] ___sys_sendmsg (net/socket.c:2670) 
[ 119.209590][ T847] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 119.209896][ T847] ? __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) 
[ 119.210297][ T847] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 119.210619][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 119.210929][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 119.211256][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 119.211574][ T847] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 119.211885][ T847] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 119.212210][ T847] __sys_sendmsg (net/socket.c:2700) 
[ 119.212531][ T847] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 119.212911][ T847] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 119.213290][ T847] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 119.213736][ T847] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 119.214053][ T847] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  119.214477][  T847] RIP: 0033:0x7f016cfaf1e7
[ 119.214796][ T847] 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)
[  119.215909][  T847] RSP: 002b:00007ffc3a456938 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  119.216407][  T847] RAX: ffffffffffffffda RBX: 00007ffc3a457060 RCX: 00007f016cfaf1e7
[  119.216866][  T847] RDX: 0000000000000000 RSI: 00007ffc3a4569a0 RDI: 0000000000000005
[  119.217452][  T847] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  119.217991][  T847] R10: 000000002e007910 R11: 0000000000000246 R12: 0000000000000003
[  119.218501][  T847] R13: 00000000686e1867 R14: 0000000000499600 R15: 0000000000000000
| [  219.185331][ T1426] ------------[ cut here ]------------
| [ 219.185895][ T1426] WARNING: CPU: 3 PID: 1426 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) 
| [  219.186543][ T1426] Modules linked in: 8021q bridge stp llc vrf macvlan veth
| [  219.187692][ T1426] Tainted: [W]=WARN
[  219.187937][ T1426] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 219.188357][ T1426] 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) 
[ 219.188690][ T1426] 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
[  219.189828][ T1426] RSP: 0018:ffffc90000f66ef0 EFLAGS: 00010246
[  219.190221][ T1426] RAX: 0000000000000000 RBX: ffff888005052000 RCX: 0000000000000001
[  219.190681][ T1426] RDX: 0000000000000000 RSI: ffffffff92a9b941 RDI: ffffffff922555e0
[  219.191139][ T1426] RBP: ffffc90000f66fe0 R08: 0000000000000000 R09: 0000000000000000
[  219.191625][ T1426] R10: ffffc90000f67010 R11: ffffffff938a8918 R12: 1ffff920001ecde2
[  219.192079][ T1426] R13: 00000000000005dc R14: ffffc90000f67010 R15: ffff888005052f08
[  219.192557][ T1426] FS:  00007fa571080800(0000) GS:ffff8880a1837000(0000) knlGS:0000000000000000
[  219.193089][ T1426] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  219.193490][ T1426] CR2: 00000000004e5aa8 CR3: 000000001100d005 CR4: 0000000000772ef0
[  219.193987][ T1426] PKRU: 55555554
[  219.194226][ T1426] Call Trace:
[  219.194472][ T1426]  <TASK>
[ 219.194638][ T1426] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 219.194980][ T1426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 219.195309][ T1426] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 219.195635][ T1426] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 219.196043][ T1426] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 219.196382][ T1426] netif_set_mtu (net/core/dev.c:9652) 
[ 219.196703][ T1426] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 219.197034][ T1426] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 219.197488][ T1426] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 219.197737][ T1426] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 219.198187][ T1426] br_add_if (net/bridge/br_if.c:697) bridge 
[ 219.198563][ T1426] ? cycle_netdev (drivers/net/vrf.c:1055) vrf 
[ 219.198905][ T1426] do_set_master (net/core/rtnetlink.c:2948) 
[ 219.199234][ T1426] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 219.199570][ T1426] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 219.199974][ T1426] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 219.200297][ T1426] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 219.200636][ T1426] ? __kernel_text_address (kernel/extable.c:79) 
[ 219.200973][ T1426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 219.201293][ T1426] ? __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) 
[ 219.201621][ T1426] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 219.202017][ T1426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 219.202355][ T1426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 219.202676][ T1426] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 219.202996][ T1426] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 219.203344][ T1426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 219.203669][ T1426] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 219.203984][ T1426] ? __create_object (mm/kmemleak.c:771) 
[ 219.204309][ T1426] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 219.204653][ T1426] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 219.204976][ T1426] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 219.205382][ T1426] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 219.205716][ T1426] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 219.206043][ T1426] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 219.206380][ T1426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 219.206709][ T1426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 219.207030][ T1426] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 219.207357][ T1426] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 219.207681][ T1426] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 219.208003][ T1426] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 219.208350][ T1426] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 219.208677][ T1426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 219.209019][ T1426] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 219.209361][ T1426] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 219.209669][ T1426] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 219.210018][ T1426] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 219.210346][ T1426] ? 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) 
[ 219.210677][ T1426] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 219.211002][ T1426] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 219.211322][ T1426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 219.211656][ T1426] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 219.211967][ T1426] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 219.212273][ T1426] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 219.212604][ T1426] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 219.212917][ T1426] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 219.213226][ T1426] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 219.213624][ T1426] ___sys_sendmsg (net/socket.c:2670) 
[ 219.213928][ T1426] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 219.214235][ T1426] ? __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) 
[ 219.214620][ T1426] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 219.214930][ T1426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 219.215243][ T1426] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 219.215565][ T1426] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 219.215870][ T1426] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 219.216177][ T1426] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 219.216509][ T1426] __sys_sendmsg (net/socket.c:2700) 
[ 219.216811][ T1426] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 219.217186][ T1426] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 219.217510][ T1426] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 219.217824][ T1426] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 219.218128][ T1426] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  219.218514][ T1426] RIP: 0033:0x7fa57124d1e7
[ 219.218861][ T1426] 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)
[  219.219962][ T1426] RSP: 002b:00007ffeb859e428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  219.220437][ T1426] RAX: ffffffffffffffda RBX: 00007ffeb859eb50 RCX: 00007fa57124d1e7
[  219.220893][ T1426] RDX: 0000000000000000 RSI: 00007ffeb859e490 RDI: 0000000000000005
[  219.221356][ T1426] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  219.221818][ T1426] R10: 0000000008baf910 R11: 0000000000000246 R12: 0000000000000003
[  219.222272][ T1426] R13: 00000000686e18cb R14: 0000000000499600 R15: 0000000000000000
| [  274.964379][ T1761] ------------[ cut here ]------------
| [ 274.964741][ T1761] WARNING: CPU: 3 PID: 1761 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) 
| [  274.965485][ T1761] Modules linked in: 8021q bridge stp llc vrf macvlan veth
| [  274.966828][ T1761] Tainted: [W]=WARN
[  274.967091][ T1761] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 274.967531][ T1761] 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) 
[ 274.967900][ T1761] 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
[  274.969200][ T1761] RSP: 0018:ffffc900017d6ef0 EFLAGS: 00010246
[  274.969652][ T1761] RAX: 0000000000000000 RBX: ffff888005052000 RCX: 0000000000000001
[  274.970178][ T1761] RDX: 0000000000000000 RSI: ffffffff92a9b941 RDI: ffffffff922555e0
[  274.970723][ T1761] RBP: ffffc900017d6fe0 R08: 0000000000000000 R09: 0000000000000000
[  274.971257][ T1761] R10: ffffc900017d7010 R11: ffffffff938a8918 R12: 1ffff920002fade2
[  274.971780][ T1761] R13: 00000000000005dc R14: ffffc900017d7010 R15: ffff888005052f08
[  274.972303][ T1761] FS:  00007efe3c3d7800(0000) GS:ffff8880a1837000(0000) knlGS:0000000000000000
[  274.972942][ T1761] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  274.973326][ T1761] CR2: 00000000004e5aa8 CR3: 0000000014980004 CR4: 0000000000772ef0
[  274.973824][ T1761] PKRU: 55555554
[  274.974094][ T1761] Call Trace:
[  274.974371][ T1761]  <TASK>
[ 274.974556][ T1761] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 274.974924][ T1761] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 274.975293][ T1761] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 274.975655][ T1761] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 274.976101][ T1761] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 274.976461][ T1761] netif_set_mtu (net/core/dev.c:9652) 
[ 274.976810][ T1761] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 274.977170][ T1761] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 274.977687][ T1761] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 274.977958][ T1761] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 274.978446][ T1761] br_add_if (net/bridge/br_if.c:697) bridge 
[ 274.978845][ T1761] ? cycle_netdev (drivers/net/vrf.c:1055) vrf 
[ 274.979202][ T1761] do_set_master (net/core/rtnetlink.c:2948) 
[ 274.979566][ T1761] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 274.979926][ T1761] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 274.980371][ T1761] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 274.980728][ T1761] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 274.981073][ T1761] ? __kernel_text_address (kernel/extable.c:79) 
[ 274.981453][ T1761] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 274.981803][ T1761] ? __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) 
[ 274.982152][ T1761] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 274.982595][ T1761] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 274.983001][ T1761] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 274.983470][ T1761] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 274.983782][ T1761] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 274.984119][ T1761] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 274.984442][ T1761] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 274.984749][ T1761] ? __create_object (mm/kmemleak.c:771) 
[ 274.985080][ T1761] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 274.985404][ T1761] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 274.985789][ T1761] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 274.986235][ T1761] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 274.986600][ T1761] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 274.986970][ T1761] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 274.987320][ T1761] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 274.987697][ T1761] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 274.988072][ T1761] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 274.988397][ T1761] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 274.988721][ T1761] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 274.989088][ T1761] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 274.989414][ T1761] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 274.989721][ T1761] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 274.990042][ T1761] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 274.990372][ T1761] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 274.990683][ T1761] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 274.990998][ T1761] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 274.991348][ T1761] ? 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) 
[ 274.991703][ T1761] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 274.992056][ T1761] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 274.992411][ T1761] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 274.992769][ T1761] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 274.993127][ T1761] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 274.993483][ T1761] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 274.993844][ T1761] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 274.994209][ T1761] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 274.994564][ T1761] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 274.995004][ T1761] ___sys_sendmsg (net/socket.c:2670) 
[ 274.995357][ T1761] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 274.995711][ T1761] ? __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) 
[ 274.996146][ T1761] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 274.996504][ T1761] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 274.996861][ T1761] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 274.997212][ T1761] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 274.997570][ T1761] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 274.997918][ T1761] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 274.998270][ T1761] __sys_sendmsg (net/socket.c:2700) 
[ 274.998630][ T1761] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 274.999075][ T1761] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 274.999443][ T1761] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 274.999798][ T1761] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 275.000187][ T1761] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  275.000629][ T1761] RIP: 0033:0x7efe3c5a41e7
[ 275.000946][ T1761] 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)
[  275.002094][ T1761] RSP: 002b:00007ffe57b0a898 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  275.002625][ T1761] RAX: ffffffffffffffda RBX: 00007ffe57b0afc0 RCX: 00007efe3c5a41e7
[  275.003146][ T1761] RDX: 0000000000000000 RSI: 00007ffe57b0a900 RDI: 0000000000000005
[  275.003678][ T1761] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  275.004194][ T1761] R10: 0000000030703910 R11: 0000000000000246 R12: 0000000000000003
[  275.004720][ T1761] R13: 00000000686e1903 R14: 0000000000499600 R15: 0000000000000000
| [  327.873530][ T2068] ------------[ cut here ]------------
| [ 327.873890][ T2068] WARNING: CPU: 1 PID: 2068 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) 
| [  327.874685][ T2068] Modules linked in: 8021q bridge stp llc vrf macvlan veth
| [  327.875989][ T2068] Tainted: [W]=WARN
[  327.876228][ T2068] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 327.876763][ T2068] 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) 
[ 327.877096][ T2068] 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
[  327.878498][ T2068] RSP: 0018:ffffc90002196ef0 EFLAGS: 00010246
[  327.878919][ T2068] RAX: 0000000000000000 RBX: ffff888008fe2000 RCX: 0000000000000001
[  327.879571][ T2068] RDX: 0000000000000000 RSI: ffffffff92a9b941 RDI: ffffffff922555e0
[  327.880028][ T2068] RBP: ffffc90002196fe0 R08: 0000000000000000 R09: 0000000000000000
[  327.880633][ T2068] R10: ffffc90002197010 R11: ffffffff938a8918 R12: 1ffff92000432de2
[  327.881094][ T2068] R13: 00000000000005dc R14: ffffc90002197010 R15: ffff888008fe2f08
[  327.881571][ T2068] FS:  00007f1fdefd0800(0000) GS:ffff8880a1737000(0000) knlGS:0000000000000000
[  327.882102][ T2068] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  327.882534][ T2068] CR2: 00000000004e5aa8 CR3: 00000000149cf006 CR4: 0000000000772ef0
[  327.883027][ T2068] PKRU: 55555554
[  327.883268][ T2068] Call Trace:
[  327.883519][ T2068]  <TASK>
[ 327.883681][ T2068] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 327.883985][ T2068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 327.884294][ T2068] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 327.884609][ T2068] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 327.884987][ T2068] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 327.885300][ T2068] netif_set_mtu (net/core/dev.c:9652) 
[ 327.885615][ T2068] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 327.885932][ T2068] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 327.886397][ T2068] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 327.886634][ T2068] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 327.887057][ T2068] br_add_if (net/bridge/br_if.c:697) bridge 
[ 327.887435][ T2068] do_set_master (net/core/rtnetlink.c:2948) 
[ 327.887750][ T2068] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 327.888060][ T2068] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 327.888455][ T2068] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 327.888761][ T2068] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 327.889077][ T2068] ? __kernel_text_address (kernel/extable.c:79) 
[ 327.889397][ T2068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 327.889751][ T2068] ? __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) 
[ 327.890062][ T2068] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 327.890492][ T2068] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 327.890814][ T2068] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 327.891139][ T2068] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 327.891465][ T2068] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 327.891775][ T2068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 327.892087][ T2068] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 327.892400][ T2068] ? __create_object (mm/kmemleak.c:771) 
[ 327.892707][ T2068] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 327.893013][ T2068] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 327.893315][ T2068] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 327.893704][ T2068] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 327.894016][ T2068] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 327.894368][ T2068] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 327.894679][ T2068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 327.894992][ T2068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 327.895296][ T2068] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 327.895615][ T2068] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 327.895921][ T2068] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 327.896225][ T2068] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 327.896540][ T2068] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 327.896851][ T2068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 327.897167][ T2068] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 327.897483][ T2068] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 327.897794][ T2068] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 327.898114][ T2068] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 327.898461][ T2068] ? 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) 
[ 327.898770][ T2068] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 327.899087][ T2068] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 327.899420][ T2068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 327.899735][ T2068] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 327.900049][ T2068] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 327.900367][ T2068] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 327.900679][ T2068] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 327.901002][ T2068] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 327.901322][ T2068] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 327.901747][ T2068] ___sys_sendmsg (net/socket.c:2670) 
[ 327.902068][ T2068] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 327.902429][ T2068] ? __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) 
[ 327.902830][ T2068] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 327.903153][ T2068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 327.903490][ T2068] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 327.903810][ T2068] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 327.904136][ T2068] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 327.904468][ T2068] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 327.904799][ T2068] __sys_sendmsg (net/socket.c:2700) 
[ 327.905117][ T2068] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 327.905523][ T2068] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 327.905856][ T2068] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 327.906177][ T2068] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 327.906550][ T2068] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  327.906951][ T2068] RIP: 0033:0x7f1fdf19d1e7
[ 327.907280][ T2068] 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)
[  327.908436][ T2068] RSP: 002b:00007ffef7353d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  327.908949][ T2068] RAX: ffffffffffffffda RBX: 00007ffef7354490 RCX: 00007f1fdf19d1e7
[  327.909415][ T2068] RDX: 0000000000000000 RSI: 00007ffef7353dd0 RDI: 0000000000000005
[  327.909879][ T2068] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  327.910374][ T2068] R10: 000000002f21c910 R11: 0000000000000246 R12: 0000000000000003
[  327.911137][ T2068] R13: 00000000686e1938 R14: 0000000000499600 R15: 0000000000000000
| [  370.451405][ T2292] ------------[ cut here ]------------
| [ 370.451727][ T2292] WARNING: CPU: 1 PID: 2292 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) 
| [  370.452348][ T2292] Modules linked in: 8021q bridge stp llc vrf macvlan veth
| [  370.453578][ T2292] Tainted: [W]=WARN
[  370.453813][ T2292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 370.454192][ T2292] 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) 
[ 370.454672][ T2292] 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
[  370.455911][ T2292] RSP: 0018:ffffc90002736ef0 EFLAGS: 00010246
[  370.456296][ T2292] RAX: 0000000000000000 RBX: ffff888005052000 RCX: 0000000000000001
[  370.456946][ T2292] RDX: 0000000000000000 RSI: ffffffff92a9b941 RDI: ffffffff922555e0
[  370.457608][ T2292] RBP: ffffc90002736fe0 R08: 0000000000000000 R09: 0000000000000000
[  370.458064][ T2292] R10: ffffc90002737010 R11: ffffffff938a8918 R12: 1ffff920004e6de2
[  370.458707][ T2292] R13: 00000000000005dc R14: ffffc90002737010 R15: ffff888005052f08
[  370.459178][ T2292] FS:  00007f3ad5421800(0000) GS:ffff8880a1737000(0000) knlGS:0000000000000000
[  370.459865][ T2292] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  370.460250][ T2292] CR2: 00000000004e5aa8 CR3: 0000000009a3a006 CR4: 0000000000772ef0
[  370.460892][ T2292] PKRU: 55555554
[  370.461124][ T2292] Call Trace:
[  370.461496][ T2292]  <TASK>
[ 370.461656][ T2292] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 370.461970][ T2292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 370.462284][ T2292] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 370.462814][ T2292] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 370.463195][ T2292] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 370.463686][ T2292] netif_set_mtu (net/core/dev.c:9652) 
[ 370.463998][ T2292] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 370.464315][ T2292] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 370.464934][ T2292] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 370.465172][ T2292] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 370.465640][ T2292] br_add_if (net/bridge/br_if.c:697) bridge 
[ 370.465992][ T2292] do_set_master (net/core/rtnetlink.c:2948) 
[ 370.466302][ T2292] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 370.466619][ T2292] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 370.467007][ T2292] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 370.467321][ T2292] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 370.467639][ T2292] ? __kernel_text_address (kernel/extable.c:79) 
[ 370.467946][ T2292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 370.468254][ T2292] ? __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) 
[ 370.468617][ T2292] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 370.469018][ T2292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 370.469327][ T2292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 370.469657][ T2292] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 370.469962][ T2292] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 370.470270][ T2292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 370.470583][ T2292] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 370.470885][ T2292] ? __create_object (mm/kmemleak.c:771) 
[ 370.471198][ T2292] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 370.471534][ T2292] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 370.471851][ T2292] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 370.472227][ T2292] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 370.472573][ T2292] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 370.472892][ T2292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 370.473194][ T2292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 370.473516][ T2292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 370.473821][ T2292] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 370.474122][ T2292] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 370.474442][ T2292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 370.474748][ T2292] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 370.475051][ T2292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 370.475369][ T2292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 370.475772][ T2292] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 370.476079][ T2292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 370.476424][ T2292] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 370.476796][ T2292] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 370.477108][ T2292] ? 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) 
[ 370.477431][ T2292] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 370.477753][ T2292] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 370.478059][ T2292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 370.478381][ T2292] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 370.478704][ T2292] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 370.479029][ T2292] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 370.479355][ T2292] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 370.479675][ T2292] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 370.479982][ T2292] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 370.480380][ T2292] ___sys_sendmsg (net/socket.c:2670) 
[ 370.480721][ T2292] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 370.481027][ T2292] ? __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) 
[ 370.481421][ T2292] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 370.481765][ T2292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 370.482073][ T2292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 370.482395][ T2292] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 370.482710][ T2292] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 370.483012][ T2292] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 370.483325][ T2292] __sys_sendmsg (net/socket.c:2700) 
[ 370.483640][ T2292] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 370.484025][ T2292] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 370.484349][ T2292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 370.484695][ T2292] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 370.485001][ T2292] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  370.485389][ T2292] RIP: 0033:0x7f3ad55ee1e7
[ 370.485704][ T2292] 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)
[  370.486950][ T2292] RSP: 002b:00007ffcee21a638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  370.487425][ T2292] RAX: ffffffffffffffda RBX: 00007ffcee21ad60 RCX: 00007f3ad55ee1e7
[  370.487901][ T2292] RDX: 0000000000000000 RSI: 00007ffcee21a6a0 RDI: 0000000000000005
[  370.488372][ T2292] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[  370.488848][ T2292] R10: 000000003752f910 R11: 0000000000000246 R12: 0000000000000003


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