======================================
| [   18.406751][  T303] veth1: entered promiscuous mode
| [   18.408919][  T303] ------------[ cut here ]------------
| [ 18.409280][ T303] WARNING: CPU: 3 PID: 303 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) 
| [   18.409925][  T303] Modules linked in: bridge stp llc vrf veth
[   18.411141][  T303] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.411550][ T303] 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) 
[ 18.411889][ T303] 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
[   18.413052][  T303] RSP: 0018:ffffc90000556ef0 EFLAGS: 00010246
[   18.413472][  T303] RAX: 0000000000000000 RBX: ffff88800bed2000 RCX: 0000000000000001
[   18.413959][  T303] RDX: 0000000000000000 RSI: ffffffff9b29b941 RDI: ffffffff9aa555e0
[   18.414457][  T303] RBP: ffffc90000556fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.414955][  T303] R10: ffffc90000557010 R11: ffffffff9c0a8918 R12: 1ffff920000aade2
[   18.415457][  T303] R13: 00000000000005dc R14: ffffc90000557010 R15: ffff88800bed2f08
[   18.415937][  T303] FS:  00007f97cdaa3800(0000) GS:ffff888092237000(0000) knlGS:0000000000000000
[   18.416509][  T303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.416915][  T303] CR2: 00000000004e5aa8 CR3: 000000000beb1004 CR4: 0000000000772ef0
[   18.417415][  T303] PKRU: 55555554
[   18.417661][  T303] Call Trace:
[   18.417907][  T303]  <TASK>
[ 18.418078][ T303] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.418412][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.418742][ T303] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.419065][ T303] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.419474][ T303] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.419801][ T303] netif_set_mtu (net/core/dev.c:9652) 
[ 18.420139][ T303] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.420471][ T303] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.420922][ T303] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.421193][ T303] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.421636][ T303] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.422005][ T303] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.422352][ T303] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.422679][ T303] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.423086][ T303] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.423416][ T303] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.423737][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.424063][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.424394][ T303] ? __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) 
[ 18.424726][ T303] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.425138][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.425461][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.425780][ T303] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.426100][ T303] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.426431][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.426759][ T303] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.427087][ T303] ? __create_object (mm/kmemleak.c:771) 
[ 18.427429][ T303] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.427757][ T303] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.428080][ T303] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.428488][ T303] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.428817][ T303] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.429153][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.429474][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.429805][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.430134][ T303] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.430456][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.430779][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.431125][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.431448][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.431776][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.432103][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.432435][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.432756][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.433091][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.433422][ T303] ? 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) 
[ 18.433747][ T303] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.434075][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.434411][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.434739][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.435066][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.435401][ T303] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.435729][ T303] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.436053][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.436381][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.436791][ T303] ___sys_sendmsg (net/socket.c:2670) 
[ 18.437110][ T303] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.437440][ T303] ? __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) 
[ 18.437840][ T303] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.438179][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.438515][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.438842][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.439172][ T303] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.439498][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.439824][ T303] __sys_sendmsg (net/socket.c:2700) 
[ 18.440151][ T303] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.440548][ T303] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.440878][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.441471][ T303] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.441792][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.442181][  T303] RIP: 0033:0x7f97cdc701e7
[ 18.442508][ T303] 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)
[   18.443851][  T303] RSP: 002b:00007ffe06ff4278 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.444560][  T303] RAX: ffffffffffffffda RBX: 00007ffe06ff49a0 RCX: 00007f97cdc701e7
[   18.445017][  T303] RDX: 0000000000000000 RSI: 00007ffe06ff42e0 RDI: 0000000000000005
[   18.445710][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.446180][  T303] R10: 0000000018a7e910 R11: 0000000000000246 R12: 0000000000000004
[   18.446644][  T303] R13: 00000000686e2161 R14: 0000000000499600 R15: 0000000000000000
| [   18.690747][  T306] ------------[ cut here ]------------
| [ 18.691102][ T306] WARNING: CPU: 2 PID: 306 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) 
| [   18.692300][  T306] Modules linked in: bridge stp llc vrf veth
| [   18.693379][  T306] Tainted: [W]=WARN
[   18.693630][  T306] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.694027][ T306] 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) 
[ 18.694404][ T306] 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
[   18.695540][  T306] RSP: 0018:ffffc900005a6ef0 EFLAGS: 00010246
[   18.695969][  T306] RAX: 0000000000000000 RBX: ffff88800bed2000 RCX: 0000000000000001
[   18.696475][  T306] RDX: 0000000000000000 RSI: ffffffff9b29b941 RDI: ffffffff9aa555e0
[   18.696954][  T306] RBP: ffffc900005a6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.697456][  T306] R10: ffffc900005a7010 R11: ffffffff9c0a8918 R12: 1ffff920000b4de2
[   18.697924][  T306] R13: 00000000000005dc R14: ffffc900005a7010 R15: ffff88800bed2f08
[   18.698437][  T306] FS:  00007fbaed842800(0000) GS:ffff8880921b7000(0000) knlGS:0000000000000000
[   18.698990][  T306] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.699414][  T306] CR2: 00000000004e5ab0 CR3: 000000000dfd5006 CR4: 0000000000772ef0
[   18.699886][  T306] PKRU: 55555554
[   18.700137][  T306] Call Trace:
[   18.700395][  T306]  <TASK>
[ 18.700567][ T306] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.700890][ T306] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.701248][ T306] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.701582][ T306] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.701974][ T306] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.702325][ T306] netif_set_mtu (net/core/dev.c:9652) 
[ 18.702667][ T306] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.702999][ T306] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.703469][ T306] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.703724][ T306] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.704173][ T306] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.704561][ T306] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.704885][ T306] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.705225][ T306] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.705639][ T306] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.705960][ T306] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.706306][ T306] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.706648][ T306] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.706968][ T306] ? __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) 
[ 18.707301][ T306] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.707710][ T306] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.708029][ T306] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.708377][ T306] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.708719][ T306] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.709036][ T306] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.709367][ T306] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.709698][ T306] ? __create_object (mm/kmemleak.c:771) 
[ 18.710022][ T306] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.710411][ T306] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.710754][ T306] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.711180][ T306] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.711508][ T306] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.711847][ T306] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.712176][ T306] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.712500][ T306] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.712833][ T306] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.713162][ T306] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.713484][ T306] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.713821][ T306] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.714165][ T306] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.714489][ T306] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.714831][ T306] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.715160][ T306] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.715482][ T306] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.715826][ T306] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.716159][ T306] ? 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) 
[ 18.716480][ T306] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.716809][ T306] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.717144][ T306] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.717468][ T306] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.717788][ T306] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.718147][ T306] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.718477][ T306] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.718797][ T306] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.719140][ T306] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.719542][ T306] ___sys_sendmsg (net/socket.c:2670) 
[ 18.719856][ T306] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.720204][ T306] ? __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) 
[ 18.720593][ T306] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.720935][ T306] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.721283][ T306] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.721607][ T306] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.721925][ T306] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.722282][ T306] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.722608][ T306] __sys_sendmsg (net/socket.c:2700) 
[ 18.722922][ T306] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.723374][ T306] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.723711][ T306] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.724044][ T306] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.724377][ T306] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.724763][  T306] RIP: 0033:0x7fbaeda0f1e7
[ 18.725107][ T306] 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)
[   18.726244][  T306] RSP: 002b:00007ffe08787808 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.726722][  T306] RAX: ffffffffffffffda RBX: 00007ffe08787f30 RCX: 00007fbaeda0f1e7
[   18.727219][  T306] RDX: 0000000000000000 RSI: 00007ffe08787870 RDI: 0000000000000005
[   18.727691][  T306] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.728192][  T306] R10: 0000000003d05910 R11: 0000000000000246 R12: 0000000000000004
[   18.728661][  T306] R13: 00000000686e2161 R14: 0000000000499600 R15: 0000000000000000
| [   45.861964][  T627] ------------[ cut here ]------------
| [ 45.862993][ T627] WARNING: CPU: 3 PID: 627 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) 
| [   45.863632][  T627] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   45.864799][  T627] Tainted: [W]=WARN
[   45.865029][  T627] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.865440][ T627] 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) 
[ 45.865755][ T627] 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
[   45.866869][  T627] RSP: 0018:ffffc9000103ef70 EFLAGS: 00010246
[   45.867279][  T627] RAX: 0000000000000000 RBX: ffff88800bed2000 RCX: 0000000000000001
[   45.867754][  T627] RDX: 0000000000000000 RSI: ffffffff9b29b941 RDI: ffffffff9aa555e0
[   45.868230][  T627] RBP: ffffc9000103f058 R08: 0000000000000000 R09: 0000000000000000
[   45.868709][  T627] R10: ffffc9000103f088 R11: ffffffff97600130 R12: 1ffff92000207df2
[   45.869170][  T627] R13: 00000000000005dc R14: ffffc9000103f088 R15: ffff88800bed2f08
[   45.869641][  T627] FS:  00007f3a5cbe3800(0000) GS:ffff888092237000(0000) knlGS:0000000000000000
[   45.870187][  T627] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.870597][  T627] CR2: 00000000004e5ab0 CR3: 000000000aba1003 CR4: 0000000000772ef0
[   45.871069][  T627] PKRU: 55555554
[   45.871333][  T627] Call Trace:
[   45.871565][  T627]  <TASK>
[ 45.871739][ T627] ? __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) 
[ 45.872145][ T627] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 45.872538][ T627] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 45.872863][ T627] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 45.873192][ T627] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 45.873494][ T627] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 45.873794][ T627] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 45.874100][ T627] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 45.874425][ T627] ? ___sys_sendmsg (net/socket.c:2670) 
[ 45.874726][ T627] ? __sys_sendmsg (net/socket.c:2700) 
[ 45.875027][ T627] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 45.875355][ T627] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 45.875743][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.876064][ T627] netif_set_mtu (net/core/dev.c:9652) 
[ 45.876389][ T627] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 45.876731][ T627] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 45.876963][ T627] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 45.877409][ T627] br_del_if (net/bridge/br_if.c:743) bridge 
[ 45.877745][ T627] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 45.878048][ T627] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 45.878394][ T627] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 45.878711][ T627] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 45.879125][ T627] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 45.879443][ T627] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 45.879745][ T627] ? __kernel_text_address (kernel/extable.c:79) 
[ 45.880049][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.880364][ T627] ? __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) 
[ 45.880666][ T627] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 45.881044][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.881372][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.881673][ T627] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 45.881976][ T627] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 45.882310][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.882627][ T627] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 45.882928][ T627] ? __create_object (mm/kmemleak.c:771) 
[ 45.883264][ T627] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 45.883571][ T627] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 45.883887][ T627] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 45.884269][ T627] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 45.884580][ T627] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 45.884903][ T627] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.885214][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.885521][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.885823][ T627] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 45.886141][ T627] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 45.886450][ T627] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.886750][ T627] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 45.887052][ T627] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.887364][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.887671][ T627] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 45.887971][ T627] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.888283][ T627] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 45.888607][ T627] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 45.888909][ T627] ? 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) 
[ 45.889221][ T627] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 45.889533][ T627] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 45.889839][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.890166][ T627] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 45.890473][ T627] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 45.890785][ T627] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 45.891111][ T627] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 45.891434][ T627] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 45.891735][ T627] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 45.892132][ T627] ___sys_sendmsg (net/socket.c:2670) 
[ 45.892448][ T627] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 45.892749][ T627] ? __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) 
[ 45.893153][ T627] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 45.893475][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.893794][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.894138][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.894466][ T627] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 45.894775][ T627] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 45.895099][ T627] __sys_sendmsg (net/socket.c:2700) 
[ 45.895409][ T627] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 45.895804][ T627] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 45.896129][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.896438][ T627] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 45.896757][ T627] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.897150][  T627] RIP: 0033:0x7f3a5cdb01e7
[ 45.897472][ T627] 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)
[   45.898632][  T627] RSP: 002b:00007fffad027508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.899095][  T627] RAX: ffffffffffffffda RBX: 00007fffad027c30 RCX: 00007f3a5cdb01e7
[   45.899556][  T627] RDX: 0000000000000000 RSI: 00007fffad027570 RDI: 0000000000000005
[   45.900030][  T627] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   45.900505][  T627] R10: 00007f3a5ccadee8 R11: 0000000000000246 R12: 0000000000000003
[   45.900973][  T627] R13: 00000000686e217c R14: 0000000000499600 R15: 0000000000000000
| [   46.134516][  T629] ------------[ cut here ]------------
| [ 46.134876][ T629] WARNING: CPU: 0 PID: 629 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) 
| [   46.135851][  T629] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   46.137096][  T629] Tainted: [W]=WARN
[   46.137345][  T629] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.137749][ T629] 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) 
[ 46.138074][ T629] 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
[   46.139249][  T629] RSP: 0018:ffffc90000f3ef70 EFLAGS: 00010246
[   46.139658][  T629] RAX: 0000000000000000 RBX: ffff88800bed2000 RCX: 0000000000000001
[   46.140145][  T629] RDX: 0000000000000000 RSI: ffffffff9b29b941 RDI: ffffffff9aa555e0
[   46.140622][  T629] RBP: ffffc90000f3f058 R08: 0000000000000000 R09: 0000000000000000
[   46.141125][  T629] R10: ffffc90000f3f088 R11: ffffffff9b779160 R12: 1ffff920001e7df2
[   46.141608][  T629] R13: 00000000000005dc R14: ffffc90000f3f088 R15: ffff88800bed2f08
[   46.142085][  T629] FS:  00007efc090c5800(0000) GS:ffff8880920b7000(0000) knlGS:0000000000000000
[   46.142651][  T629] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.143050][  T629] CR2: 00000000004e5aa8 CR3: 0000000009200002 CR4: 0000000000772ef0
[   46.143548][  T629] PKRU: 55555554
[   46.143794][  T629] Call Trace:
[   46.144037][  T629]  <TASK>
[ 46.144209][ T629] ? __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) 
[ 46.144611][ T629] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 46.144972][ T629] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 46.145302][ T629] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 46.145622][ T629] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 46.145940][ T629] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 46.146270][ T629] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.146589][ T629] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.146906][ T629] ? ___sys_sendmsg (net/socket.c:2670) 
[ 46.147247][ T629] ? __sys_sendmsg (net/socket.c:2700) 
[ 46.147564][ T629] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.147884][ T629] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 46.148289][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.148617][ T629] netif_set_mtu (net/core/dev.c:9652) 
[ 46.148945][ T629] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 46.149289][ T629] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 46.149536][ T629] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 46.149974][ T629] br_del_if (net/bridge/br_if.c:743) bridge 
[ 46.150344][ T629] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 46.150662][ T629] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 46.150982][ T629] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 46.151332][ T629] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 46.151737][ T629] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 46.152055][ T629] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 46.152382][ T629] ? __kernel_text_address (kernel/extable.c:79) 
[ 46.152705][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.153029][ T629] ? __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) 
[ 46.153357][ T629] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 46.153761][ T629] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.154081][ T629] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.154406][ T629] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 46.154730][ T629] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 46.155051][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.155377][ T629] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 46.155694][ T629] ? __create_object (mm/kmemleak.c:771) 
[ 46.156018][ T629] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 46.156354][ T629] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 46.156674][ T629] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 46.157072][ T629] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 46.157406][ T629] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 46.157732][ T629] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.158055][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.158387][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.158706][ T629] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 46.159028][ T629] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.159359][ T629] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.159693][ T629] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 46.160014][ T629] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.160373][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.160698][ T629] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 46.161020][ T629] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.161374][ T629] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 46.161704][ T629] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 46.162024][ T629] ? 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) 
[ 46.162359][ T629] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 46.162681][ T629] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 46.162999][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.163332][ T629] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.163661][ T629] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 46.163980][ T629] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 46.164312][ T629] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.164638][ T629] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 46.164955][ T629] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 46.165372][ T629] ___sys_sendmsg (net/socket.c:2670) 
[ 46.165691][ T629] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 46.166017][ T629] ? __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) 
[ 46.166422][ T629] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 46.166746][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.167068][ T629] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.167398][ T629] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.167738][ T629] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 46.168058][ T629] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.168398][ T629] __sys_sendmsg (net/socket.c:2700) 
[ 46.168717][ T629] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 46.169113][ T629] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 46.169455][ T629] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.169780][ T629] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.170101][ T629] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.170510][  T629] RIP: 0033:0x7efc092921e7
[ 46.170840][ T629] 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)
[   46.172155][  T629] RSP: 002b:00007ffe7ba71e68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   46.172977][  T629] RAX: ffffffffffffffda RBX: 00007ffe7ba72590 RCX: 00007efc092921e7
[   46.173752][  T629] RDX: 0000000000000000 RSI: 00007ffe7ba71ed0 RDI: 0000000000000005
[   46.174558][  T629] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   46.175390][  T629] R10: 00007efc0918fee8 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