======================================
| [   18.983277][  T305] veth1: entered promiscuous mode
| [   18.985635][  T305] ------------[ cut here ]------------
| [ 18.985999][ 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) 
| [   18.986637][  T305] Modules linked in: bridge stp llc sch_ingress vrf veth
[   18.987784][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.988188][ 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) 
[ 18.988523][ 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
[   18.989659][  T305] RSP: 0018:ffffc900005a6ef0 EFLAGS: 00010246
[   18.990078][  T305] RAX: 0000000000000000 RBX: ffff88800596a000 RCX: 0000000000000001
[   18.990564][  T305] RDX: 0000000000000000 RSI: ffffffff8c09b939 RDI: ffffffff8b8555e0
[   18.991057][  T305] RBP: ffffc900005a6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.991537][  T305] R10: ffffc900005a7010 R11: ffffffff8cea8918 R12: 1ffff920000b4de2
[   18.992048][  T305] R13: 00000000000005dc R14: ffffc900005a7010 R15: ffff88800596af08
[   18.992530][  T305] FS:  00007f59f88a7800(0000) GS:ffff8880a13b7000(0000) knlGS:0000000000000000
[   18.993362][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.993785][  T305] CR2: 00000000004e5aa8 CR3: 0000000004b8a005 CR4: 0000000000772ef0
[   18.994277][  T305] PKRU: 55555554
[   18.994524][  T305] Call Trace:
[   18.994781][  T305]  <TASK>
[ 18.994972][ T305] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.995303][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.995635][ T305] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.995965][ T305] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.996367][ T305] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.996814][ T305] netif_set_mtu (net/core/dev.c:9652) 
[ 18.997150][ T305] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.997485][ T305] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.997950][ T305] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.998232][ T305] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.998674][ T305] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.999063][ T305] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.999398][ T305] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.999742][ T305] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.000149][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.000477][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.000811][ T305] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.001144][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.001490][ 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) 
[ 19.001835][ T305] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.002251][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.002607][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.002936][ T305] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.003258][ T305] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.003587][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.003929][ T305] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.004274][ T305] ? __create_object (mm/kmemleak.c:771) 
[ 19.004612][ T305] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.004944][ T305] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.005281][ T305] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.005675][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.006037][ T305] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.006372][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.006703][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.007035][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.007389][ T305] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.007720][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.008052][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.008374][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.008706][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.009038][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.009371][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.009706][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.010035][ T305] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.010391][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.010728][ 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) 
[ 19.011088][ T305] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.011423][ T305] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.011774][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.012152][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.012499][ T305] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.012829][ T305] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.013158][ T305] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.013487][ T305] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.013846][ T305] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.014255][ T305] ___sys_sendmsg (net/socket.c:2670) 
[ 19.014572][ T305] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.014911][ 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) 
[ 19.015312][ T305] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.015640][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.015979][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.016519][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.016863][ 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) 
[ 19.017202][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.017532][ T305] __sys_sendmsg (net/socket.c:2700) 
[ 19.017884][ T305] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.018279][ T305] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.018622][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.018965][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.019317][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.019720][  T305] RIP: 0033:0x7f59f8a741e7
[ 19.020062][ 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)
[   19.021188][  T305] RSP: 002b:00007ffff0d0dc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.022354][  T305] RAX: ffffffffffffffda RBX: 00007ffff0d0e3b0 RCX: 00007f59f8a741e7
[   19.022861][  T305] RDX: 0000000000000000 RSI: 00007ffff0d0dcf0 RDI: 0000000000000005
[   19.023570][  T305] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.024067][  T305] R10: 0000000013a89910 R11: 0000000000000246 R12: 0000000000000004
[   19.024546][  T305] R13: 00000000686e7530 R14: 0000000000499600 R15: 0000000000000000
| [   19.278787][  T308] ------------[ cut here ]------------
| [ 19.279111][ T308] WARNING: CPU: 1 PID: 308 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) 
| [   19.279739][  T308] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   19.280776][  T308] Tainted: [W]=WARN
[   19.281023][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.281403][ T308] 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) 
[ 19.281723][ T308] 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
[   19.282833][  T308] RSP: 0018:ffffc900007e6ef0 EFLAGS: 00010246
[   19.283228][  T308] RAX: 0000000000000000 RBX: ffff88800596a000 RCX: 0000000000000001
[   19.283685][  T308] RDX: 0000000000000000 RSI: ffffffff8c09b939 RDI: ffffffff8b8555e0
[   19.284155][  T308] RBP: ffffc900007e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.284609][  T308] R10: ffffc900007e7010 R11: ffffffff8cea8918 R12: 1ffff920000fcde2
[   19.285219][  T308] R13: 00000000000005dc R14: ffffc900007e7010 R15: ffff88800596af08
[   19.285679][  T308] FS:  00007f2998d6a800(0000) GS:ffff8880a1337000(0000) knlGS:0000000000000000
[   19.286224][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.286614][  T308] CR2: 00000000004e5ab0 CR3: 000000000a0f6003 CR4: 0000000000772ef0
[   19.287095][  T308] PKRU: 55555554
[   19.287326][  T308] Call Trace:
[   19.287556][  T308]  <TASK>
[ 19.287731][ T308] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.288041][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.288361][ T308] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.288671][ T308] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.289068][ T308] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.289383][ T308] netif_set_mtu (net/core/dev.c:9652) 
[ 19.289711][ T308] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.290032][ T308] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.290466][ T308] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.290719][ T308] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.291143][ T308] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.291497][ T308] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 19.291831][ T308] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.292166][ T308] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.292556][ T308] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.292877][ T308] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.293183][ T308] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.293591][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.293929][ T308] ? __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) 
[ 19.294254][ T308] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.294641][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.294965][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.295272][ T308] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.295580][ T308] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.295901][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.296211][ T308] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.296519][ T308] ? __create_object (mm/kmemleak.c:771) 
[ 19.296848][ T308] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.297156][ T308] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.297466][ T308] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.297863][ T308] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.298177][ T308] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.298487][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.298803][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.299122][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.299428][ T308] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.299753][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.300062][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.300366][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.300674][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.301000][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.301316][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.301634][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.301957][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.302328][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.302635][ T308] ? 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) 
[ 19.302962][ T308] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.303275][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.303676][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.304027][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.304342][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.304651][ T308] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.304977][ T308] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.305291][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.305596][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.306005][ T308] ___sys_sendmsg (net/socket.c:2670) 
[ 19.306313][ T308] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.306621][ T308] ? __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) 
[ 19.307025][ T308] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.307345][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.307656][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.307988][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.308295][ T308] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.308611][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.308939][ T308] __sys_sendmsg (net/socket.c:2700) 
[ 19.309242][ T308] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.309622][ T308] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.309956][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.310264][ T308] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.310571][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.310969][  T308] RIP: 0033:0x7f2998f371e7
[ 19.311292][ T308] 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)
[   19.312430][  T308] RSP: 002b:00007fff82f0e388 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.312908][  T308] RAX: ffffffffffffffda RBX: 00007fff82f0eab0 RCX: 00007f2998f371e7
[   19.313373][  T308] RDX: 0000000000000000 RSI: 00007fff82f0e3f0 RDI: 0000000000000005
[   19.313854][  T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.314319][  T308] R10: 000000003edbf910 R11: 0000000000000246 R12: 0000000000000004
[   19.314794][  T308] R13: 00000000686e7531 R14: 0000000000499600 R15: 0000000000000000
| [   42.664292][  T510] ------------[ cut here ]------------
| [ 42.664645][ T510] WARNING: CPU: 2 PID: 510 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) 
| [   42.665295][  T510] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   42.666551][  T510] Tainted: [W]=WARN
[   42.666805][  T510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.667203][ T510] 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) 
[ 42.667532][ T510] 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
[   42.668648][  T510] RSP: 0018:ffffc90000d5ef70 EFLAGS: 00010246
[   42.669059][  T510] RAX: 0000000000000000 RBX: ffff88800596a000 RCX: 0000000000000001
[   42.669529][  T510] RDX: 0000000000000000 RSI: ffffffff8c09b939 RDI: ffffffff8b8555e0
[   42.670012][  T510] RBP: ffffc90000d5f058 R08: 0000000000000000 R09: 0000000000000000
[   42.670481][  T510] R10: ffffc90000d5f088 R11: ffffffff88400130 R12: 1ffff920001abdf2
[   42.670962][  T510] R13: 00000000000005dc R14: ffffc90000d5f088 R15: ffff88800596af08
[   42.671431][  T510] FS:  00007fd929ef7800(0000) GS:ffff8880a13b7000(0000) knlGS:0000000000000000
[   42.672003][  T510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.672416][  T510] CR2: 00000000004e5ab0 CR3: 000000000f599004 CR4: 0000000000772ef0
[   42.672900][  T510] PKRU: 55555554
[   42.673147][  T510] Call Trace:
[   42.673389][  T510]  <TASK>
[ 42.673556][ T510] ? __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) 
[ 42.673965][ T510] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 42.674345][ T510] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 42.674664][ T510] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.675018][ T510] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.675336][ T510] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.675653][ T510] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.675983][ T510] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.676305][ T510] ? ___sys_sendmsg (net/socket.c:2670) 
[ 42.676631][ T510] ? __sys_sendmsg (net/socket.c:2700) 
[ 42.676960][ T510] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.677282][ T510] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 42.677674][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.678017][ T510] netif_set_mtu (net/core/dev.c:9652) 
[ 42.678340][ T510] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.678676][ T510] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.678939][ T510] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 42.679380][ T510] br_del_if (net/bridge/br_if.c:743) bridge 
[ 42.679743][ T510] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 42.680065][ T510] do_set_master (net/core/rtnetlink.c:2932) 
[ 42.680385][ T510] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.680723][ T510] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.681125][ T510] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.681446][ T510] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.681784][ T510] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.682121][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.682440][ T510] ? __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) 
[ 42.682776][ T510] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.683167][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.683491][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.683819][ T510] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.684145][ T510] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.684461][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.684791][ T510] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.685106][ T510] ? __create_object (mm/kmemleak.c:771) 
[ 42.685429][ T510] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.685761][ T510] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.686084][ T510] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.686479][ T510] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.686817][ T510] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.687161][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.687497][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.687843][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.688165][ T510] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.688480][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.688811][ T510] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.689174][ T510] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.689499][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.689845][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.690169][ T510] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.690495][ T510] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.690832][ T510] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.691165][ T510] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.691485][ T510] ? 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) 
[ 42.691822][ T510] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.692158][ T510] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.692501][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.692837][ T510] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.693160][ T510] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.693475][ T510] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.693815][ T510] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.694149][ T510] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.694466][ T510] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.694882][ T510] ___sys_sendmsg (net/socket.c:2670) 
[ 42.695201][ T510] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 42.695521][ T510] ? __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) 
[ 42.695927][ T510] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.696252][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.696576][ T510] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.696911][ T510] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.697231][ T510] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 42.697547][ T510] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.697886][ T510] __sys_sendmsg (net/socket.c:2700) 
[ 42.698200][ T510] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 42.698590][ T510] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.698935][ T510] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.699260][ T510] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.699578][ T510] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.699988][  T510] RIP: 0033:0x7fd92a0c41e7
[ 42.700344][ T510] 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)
[   42.701465][  T510] RSP: 002b:00007ffe92cb79e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.701956][  T510] RAX: ffffffffffffffda RBX: 00007ffe92cb8110 RCX: 00007fd92a0c41e7
[   42.702467][  T510] RDX: 0000000000000000 RSI: 00007ffe92cb7a50 RDI: 0000000000000005
[   42.702951][  T510] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   42.703432][  T510] R10: 00007fd929fc1ee8 R11: 0000000000000246 R12: 0000000000000003
[   42.703916][  T510] R13: 00000000686e7548 R14: 0000000000499600 R15: 0000000000000000
| [   42.946803][  T512] ------------[ cut here ]------------
| [ 42.947310][ T512] WARNING: CPU: 0 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) 
| [   42.949235][  T512] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   42.951276][  T512] Tainted: [W]=WARN
[   42.951650][  T512] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.952301][ 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) 
[ 42.952881][ 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
[   42.954752][  T512] RSP: 0018:ffffc90000d7ef70 EFLAGS: 00010246
[   42.955442][  T512] RAX: 0000000000000000 RBX: ffff88800596a000 RCX: 0000000000000001
[   42.956557][  T512] RDX: 0000000000000000 RSI: ffffffff8c09b939 RDI: ffffffff8b8555e0
[   42.957637][  T512] RBP: ffffc90000d7f058 R08: 0000000000000000 R09: 0000000000000000
[   42.958813][  T512] R10: ffffc90000d7f088 R11: ffffffff8c579160 R12: 1ffff920001afdf2
[   42.959630][  T512] R13: 00000000000005dc R14: ffffc90000d7f088 R15: ffff88800596af08
[   42.960883][  T512] FS:  00007f89d9e3b800(0000) GS:ffff8880a12b7000(0000) knlGS:0000000000000000
[   42.962510][  T512] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.964287][  T512] CR2: 00000000004e5aa8 CR3: 000000000b8ff005 CR4: 0000000000772ef0
[   42.966216][  T512] PKRU: 55555554
[   42.967657][  T512] Call Trace:
[   42.968105][  T512]  <TASK>
[ 42.968389][ 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) 
[ 42.969107][ T512] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 42.969732][ T512] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 42.970284][ T512] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.970833][ T512] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.971368][ T512] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.971934][ T512] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.972500][ T512] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.973053][ T512] ? ___sys_sendmsg (net/socket.c:2670) 
[ 42.973591][ T512] ? __sys_sendmsg (net/socket.c:2700) 
[ 42.974158][ T512] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.974739][ T512] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 42.975406][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.976000][ T512] netif_set_mtu (net/core/dev.c:9652) 
[ 42.976542][ T512] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.976964][ T512] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.977345][ T512] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 42.977984][ T512] br_del_if (net/bridge/br_if.c:743) bridge 
[ 42.978550][ T512] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 42.979079][ T512] do_set_master (net/core/rtnetlink.c:2932) 
[ 42.979623][ T512] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 42.980191][ T512] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 42.980886][ T512] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 42.981409][ T512] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 42.981947][ T512] ? __kernel_text_address (kernel/extable.c:79) 
[ 42.982446][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.982960][ 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) 
[ 42.983511][ T512] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 42.984161][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.984660][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.985197][ T512] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 42.985602][ T512] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 42.986027][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.986539][ T512] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.987058][ T512] ? __create_object (mm/kmemleak.c:771) 
[ 42.987579][ T512] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 42.988137][ T512] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 42.988638][ T512] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 42.989316][ T512] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 42.989874][ T512] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.990402][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.990938][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.991494][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.992068][ T512] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.992599][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.993152][ T512] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.993671][ T512] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.994193][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.994729][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.995257][ T512] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.995791][ T512] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.996411][ T512] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.996967][ T512] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.997475][ 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) 
[ 42.998008][ T512] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.998539][ T512] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.999077][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.999608][ T512] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.000073][ T512] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.000562][ T512] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.001100][ T512] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.001660][ T512] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.002228][ T512] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.002788][ T512] ___sys_sendmsg (net/socket.c:2670) 
[ 43.003308][ T512] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 43.003833][ 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) 
[ 43.004462][ T512] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.005037][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.005590][ T512] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.006149][ T512] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.006744][ 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) 
[ 43.007278][ T512] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.007852][ T512] __sys_sendmsg (net/socket.c:2700) 
[ 43.008396][ T512] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 43.009103][ T512] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.009682][ T512] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.010266][ T512] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.010842][ T512] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.011492][  T512] RIP: 0033:0x7f89da0081e7
[ 43.012095][ 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)
[   43.014090][  T512] RSP: 002b:00007ffe91d41048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.014949][  T512] RAX: ffffffffffffffda RBX: 00007ffe91d41770 RCX: 00007f89da0081e7
[   43.015747][  T512] RDX: 0000000000000000 RSI: 00007ffe91d410b0 RDI: 0000000000000005
[   43.016509][  T512] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   43.017355][  T512] R10: 00007f89d9f05ee8 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