======================================
| [   19.533826][  T305] veth1: entered promiscuous mode
| [   19.536620][  T305] ------------[ cut here ]------------
| [ 19.536975][ T305] WARNING: CPU: 2 PID: 305 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.537613][  T305] Modules linked in: bridge stp llc sch_ingress vrf veth
[   19.538904][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.539357][ T305] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.539700][ T305] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.540854][  T305] RSP: 0018:ffffc90000536ef0 EFLAGS: 00010246
[   19.541274][  T305] RAX: 0000000000000000 RBX: ffff888008cea000 RCX: 0000000000000001
[   19.541757][  T305] RDX: 0000000000000000 RSI: ffffffff91a9b939 RDI: ffffffff912555e0
[   19.542248][  T305] RBP: ffffc90000536fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.542727][  T305] R10: ffffc90000537010 R11: ffffffff928a8918 R12: 1ffff920000a6de2
[   19.543254][  T305] R13: 00000000000005dc R14: ffffc90000537010 R15: ffff888008ceaf08
[   19.543775][  T305] FS:  00007feddf096800(0000) GS:ffff8880a27b7000(0000) knlGS:0000000000000000
[   19.544366][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.544799][  T305] CR2: 00000000004e5aa8 CR3: 0000000005ccb002 CR4: 0000000000772ef0
[   19.545308][  T305] PKRU: 55555554
[   19.545576][  T305] Call Trace:
[   19.546026][  T305]  <TASK>
[ 19.546346][ T305] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.546936][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.547544][ T305] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.548030][ T305] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.548483][ T305] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.548836][ T305] netif_set_mtu (net/core/dev.c:9652) 
[ 19.549174][ T305] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.549534][ T305] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.550008][ T305] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.550266][ T305] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.550722][ T305] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.551118][ T305] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.551465][ T305] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.551823][ T305] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.552243][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.552583][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.552928][ T305] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.553273][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.553610][ T305] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.553964][ T305] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.554380][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.554722][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.555062][ T305] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.555401][ T305] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.555740][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.556085][ T305] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.556420][ T305] ? __create_object (mm/kmemleak.c:771) 
[ 19.556775][ T305] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.557118][ T305] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.557461][ T305] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.557887][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.558237][ T305] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.558578][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.558927][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.559289][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.559631][ T305] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.559975][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.560316][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.560657][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.561006][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.561360][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.561713][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.562086][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.562431][ T305] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.562790][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.563134][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.563475][ T305] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.563825][ T305] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.564173][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.564516][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.564868][ T305] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.565217][ T305] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.565581][ T305] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.565939][ T305] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.566282][ T305] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.566718][ T305] ___sys_sendmsg (net/socket.c:2670) 
[ 19.567069][ T305] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.567410][ T305] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.567837][ T305] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.568177][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.568515][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.568870][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.569235][ T305] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.569578][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.569941][ T305] __sys_sendmsg (net/socket.c:2700) 
[ 19.570795][ T305] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.571214][ T305] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.571563][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.571911][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.572255][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.572666][  T305] RIP: 0033:0x7feddf2631e7
[ 19.573030][ T305] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.574438][  T305] RSP: 002b:00007ffffd8e6208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.575189][  T305] RAX: ffffffffffffffda RBX: 00007ffffd8e6930 RCX: 00007feddf2631e7
[   19.576166][  T305] RDX: 0000000000000000 RSI: 00007ffffd8e6270 RDI: 0000000000000005
[   19.576908][  T305] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.577932][  T305] R10: 000000001bd12910 R11: 0000000000000246 R12: 0000000000000004
[   19.578680][  T305] R13: 00000000686e6a42 R14: 0000000000499600 R15: 0000000000000000
| [   19.859290][  T309] ------------[ cut here ]------------
| [ 19.859629][ T309] WARNING: CPU: 3 PID: 309 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.860292][  T309] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   19.862228][  T309] Tainted: [W]=WARN
[   19.862486][  T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.862918][ T309] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.863253][ T309] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.864417][  T309] RSP: 0018:ffffc90000606ef0 EFLAGS: 00010246
[   19.864830][  T309] RAX: 0000000000000000 RBX: ffff888008cea000 RCX: 0000000000000001
[   19.865314][  T309] RDX: 0000000000000000 RSI: ffffffff91a9b939 RDI: ffffffff912555e0
[   19.865812][  T309] RBP: ffffc90000606fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.866299][  T309] R10: ffffc90000607010 R11: ffffffff928a8918 R12: 1ffff920000c0de2
[   19.866794][  T309] R13: 00000000000005dc R14: ffffc90000607010 R15: ffff888008ceaf08
[   19.867278][  T309] FS:  00007f8496a6a800(0000) GS:ffff8880a2837000(0000) knlGS:0000000000000000
[   19.867855][  T309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.868262][  T309] CR2: 00000000004e5ab0 CR3: 000000000dc6d005 CR4: 0000000000772ef0
[   19.868748][  T309] PKRU: 55555554
[   19.869002][  T309] Call Trace:
[   19.869259][  T309]  <TASK>
[ 19.869429][ T309] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.869752][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.870095][ T309] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.870418][ T309] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.870831][ T309] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.871158][ T309] netif_set_mtu (net/core/dev.c:9652) 
[ 19.871481][ T309] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.871828][ T309] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.872280][ T309] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.872534][ T309] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.872986][ T309] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.873358][ T309] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.873687][ T309] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.874029][ T309] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.874441][ T309] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.874784][ T309] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.875106][ T309] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.875435][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.875760][ T309] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.876093][ T309] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.876495][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.876830][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.877150][ T309] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.877474][ T309] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.877803][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.878124][ T309] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.878438][ T309] ? __create_object (mm/kmemleak.c:771) 
[ 19.878768][ T309] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.879092][ T309] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.879423][ T309] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.879837][ T309] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.880170][ T309] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.880496][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.880826][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.881158][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.881480][ T309] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.881815][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.882136][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.882460][ T309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.882791][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.883120][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.883446][ T309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.883775][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.884100][ T309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.884431][ T309] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.884769][ T309] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.885091][ T309] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.885415][ T309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.885733][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.886066][ T309] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.886392][ T309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.886710][ T309] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.887052][ T309] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.887381][ T309] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.887702][ T309] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.888129][ T309] ___sys_sendmsg (net/socket.c:2670) 
[ 19.888454][ T309] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.888793][ T309] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.889197][ T309] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.889535][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.889867][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.890195][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.890516][ T309] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.890848][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.891178][ T309] __sys_sendmsg (net/socket.c:2700) 
[ 19.891498][ T309] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.891908][ T309] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.892251][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.892576][ T309] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.892910][ T309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.893313][  T309] RIP: 0033:0x7f8496c371e7
[ 19.893653][ T309] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.894824][  T309] RSP: 002b:00007ffcbcb582f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.895314][  T309] RAX: ffffffffffffffda RBX: 00007ffcbcb58a20 RCX: 00007f8496c371e7
[   19.895807][  T309] RDX: 0000000000000000 RSI: 00007ffcbcb58360 RDI: 0000000000000005
[   19.896292][  T309] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.896791][  T309] R10: 000000003a060910 R11: 0000000000000246 R12: 0000000000000004
[   19.897276][  T309] R13: 00000000686e6a42 R14: 0000000000499600 R15: 0000000000000000
| [   43.427363][  T512] ------------[ cut here ]------------
| [ 43.427698][ T512] WARNING: CPU: 1 PID: 512 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) 
| [   43.428360][  T512] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   43.429662][  T512] Tainted: [W]=WARN
[   43.429915][  T512] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.430326][ T512] 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) 
[ 43.430645][ T512] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   43.431749][  T512] RSP: 0018:ffffc90000d6ef70 EFLAGS: 00010246
[   43.432147][  T512] RAX: 0000000000000000 RBX: ffff888008cea000 RCX: 0000000000000001
[   43.432616][  T512] RDX: 0000000000000000 RSI: ffffffff91a9b939 RDI: ffffffff912555e0
[   43.433122][  T512] RBP: ffffc90000d6f058 R08: 0000000000000000 R09: 0000000000000000
[   43.433589][  T512] R10: ffffc90000d6f088 R11: ffffffff8de00130 R12: 1ffff920001addf2
[   43.434069][  T512] R13: 00000000000005dc R14: ffffc90000d6f088 R15: ffff888008ceaf08
[   43.434541][  T512] FS:  00007fe5c9212800(0000) GS:ffff8880a2737000(0000) knlGS:0000000000000000
[   43.435096][  T512] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.435486][  T512] CR2: 00000000004e5ab0 CR3: 00000000091da002 CR4: 0000000000772ef0
[   43.435961][  T512] PKRU: 55555554
[   43.436195][  T512] Call Trace:
[   43.436426][  T512]  <TASK>
[ 43.436588][ T512] ? __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) 
[ 43.437026][ T512] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 43.437377][ T512] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 43.437686][ T512] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 43.438000][ T512] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.438309][ T512] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.438617][ T512] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.438975][ T512] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.439304][ T512] ? ___sys_sendmsg (net/socket.c:2670) 
[ 43.439614][ T512] ? __sys_sendmsg (net/socket.c:2700) 
[ 43.439927][ T512] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.440233][ T512] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 43.440613][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.440966][ T512] netif_set_mtu (net/core/dev.c:9652) 
[ 43.441279][ T512] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 43.441608][ T512] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 43.441857][ T512] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 43.442340][ T512] br_del_if (net/bridge/br_if.c:743) bridge 
[ 43.442689][ T512] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 43.443039][ T512] do_set_master (net/core/rtnetlink.c:2932) 
[ 43.443351][ T512] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 43.443663][ T512] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 43.444074][ T512] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 43.444382][ T512] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 43.444687][ T512] ? __kernel_text_address (kernel/extable.c:79) 
[ 43.445024][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.445334][ T512] ? __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) 
[ 43.445641][ T512] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 43.446031][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.446348][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.446653][ T512] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 43.446969][ T512] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 43.447278][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.447584][ T512] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.447899][ T512] ? __create_object (mm/kmemleak.c:771) 
[ 43.448210][ T512] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 43.448517][ T512] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 43.448853][ T512] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 43.449247][ T512] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 43.449563][ T512] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.449880][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.450184][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.450496][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.450813][ T512] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.451115][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.451428][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.451730][ T512] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.452058][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.452367][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.452674][ T512] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.452999][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.453309][ T512] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.453635][ T512] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.453944][ T512] ? 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) 
[ 43.454262][ T512] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.454572][ T512] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.454884][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.455193][ T512] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.455502][ T512] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.455826][ T512] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.456140][ T512] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.456449][ T512] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.456759][ T512] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.457176][ T512] ___sys_sendmsg (net/socket.c:2670) 
[ 43.457478][ T512] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.457794][ T512] ? __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) 
[ 43.458180][ T512] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.458485][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.458801][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.459129][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.459446][ T512] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 43.459756][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.460085][ T512] __sys_sendmsg (net/socket.c:2700) 
[ 43.460581][ T512] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.461213][ T512] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.461539][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.461859][ T512] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.462175][ T512] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.462555][  T512] RIP: 0033:0x7fe5c93df1e7
[ 43.462879][ T512] 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)
[   43.463996][  T512] RSP: 002b:00007fff33527198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.464471][  T512] RAX: ffffffffffffffda RBX: 00007fff335278c0 RCX: 00007fe5c93df1e7
[   43.464964][  T512] RDX: 0000000000000000 RSI: 00007fff33527200 RDI: 0000000000000005
[   43.465446][  T512] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   43.465913][  T512] R10: 00007fe5c92dcee8 R11: 0000000000000246 R12: 0000000000000003
[   43.466381][  T512] R13: 00000000686e6a5a R14: 0000000000499600 R15: 0000000000000000
| [   43.726894][  T514] ------------[ cut here ]------------
| [ 43.727250][ T514] WARNING: CPU: 2 PID: 514 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) 
| [   43.727907][  T514] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   43.729146][  T514] Tainted: [W]=WARN
[   43.729407][  T514] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.729815][ T514] 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) 
[ 43.730156][ T514] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   43.731452][  T514] RSP: 0018:ffffc90000d8ef70 EFLAGS: 00010246
[   43.732114][  T514] RAX: 0000000000000000 RBX: ffff888008cea000 RCX: 0000000000000001
[   43.732868][  T514] RDX: 0000000000000000 RSI: ffffffff91a9b939 RDI: ffffffff912555e0
[   43.733512][  T514] RBP: ffffc90000d8f058 R08: 0000000000000000 R09: 0000000000000000
[   43.734059][  T514] R10: ffffc90000d8f088 R11: ffffffff91f79160 R12: 1ffff920001b1df2
[   43.734557][  T514] R13: 00000000000005dc R14: ffffc90000d8f088 R15: ffff888008ceaf08
[   43.735069][  T514] FS:  00007f69bf5b5800(0000) GS:ffff8880a27b7000(0000) knlGS:0000000000000000
[   43.735652][  T514] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.736067][  T514] CR2: 00000000004e5aa8 CR3: 000000000a5d6004 CR4: 0000000000772ef0
[   43.736542][  T514] PKRU: 55555554
[   43.736806][  T514] Call Trace:
[   43.737051][  T514]  <TASK>
[ 43.737221][ T514] ? __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) 
[ 43.737633][ T514] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 43.738034][ T514] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 43.738361][ T514] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 43.738677][ T514] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.739012][ T514] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.739351][ T514] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.739670][ T514] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.740016][ T514] ? ___sys_sendmsg (net/socket.c:2670) 
[ 43.740333][ T514] ? __sys_sendmsg (net/socket.c:2700) 
[ 43.740648][ T514] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.740996][ T514] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 43.741391][ T514] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.741721][ T514] netif_set_mtu (net/core/dev.c:9652) 
[ 43.742077][ T514] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 43.742412][ T514] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 43.742669][ T514] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 43.743121][ T514] br_del_if (net/bridge/br_if.c:743) bridge 
[ 43.743472][ T514] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 43.743822][ T514] do_set_master (net/core/rtnetlink.c:2932) 
[ 43.744165][ T514] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 43.744506][ T514] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 43.744938][ T514] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 43.745282][ T514] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 43.745621][ T514] ? __kernel_text_address (kernel/extable.c:79) 
[ 43.745990][ T514] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.746329][ T514] ? __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) 
[ 43.746664][ T514] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 43.747086][ T514] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.747424][ T514] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.747770][ T514] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 43.748104][ T514] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 43.748435][ T514] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.748777][ T514] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.749093][ T514] ? __create_object (mm/kmemleak.c:771) 
[ 43.749429][ T514] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 43.749750][ T514] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 43.750096][ T514] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 43.750494][ T514] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 43.750835][ T514] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.751159][ T514] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.751472][ T514] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.751807][ T514] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.752155][ T514] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.752470][ T514] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.752812][ T514] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.753137][ T514] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.753459][ T514] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.753821][ T514] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.754167][ T514] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.754498][ T514] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.754846][ T514] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.755193][ T514] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.755536][ T514] ? 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) 
[ 43.755882][ T514] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.756226][ T514] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.756559][ T514] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.756915][ T514] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.757253][ T514] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.757587][ T514] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.757964][ T514] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.758307][ T514] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.758638][ T514] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.759061][ T514] ___sys_sendmsg (net/socket.c:2670) 
[ 43.759398][ T514] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.759720][ T514] ? __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) 
[ 43.760138][ T514] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.760474][ T514] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.760816][ T514] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.761141][ T514] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.761459][ T514] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 43.761807][ T514] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.762135][ T514] __sys_sendmsg (net/socket.c:2700) 
[ 43.762449][ T514] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.762864][ T514] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.763202][ T514] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.763520][ T514] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.763857][ T514] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.764252][  T514] RIP: 0033:0x7f69bf7821e7
[ 43.764582][ T514] 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)
[   43.765719][  T514] RSP: 002b:00007ffc03d1b0b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.766221][  T514] RAX: ffffffffffffffda RBX: 00007ffc03d1b7e0 RCX: 00007f69bf7821e7
[   43.766714][  T514] RDX: 0000000000000000 RSI: 00007ffc03d1b120 RDI: 0000000000000005
[   43.767224][  T514] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   43.767726][  T514] R10: 00007f69bf67fee8 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