======================================
| xx__-> [   15.138356][  T252] ip (252) used greatest stack depth: 24528 bytes left
| [   18.234654][  T301] ------------[ cut here ]------------
| [ 18.235457][ T301] WARNING: CPU: 0 PID: 301 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) 
| [   18.236502][  T301] Modules linked in: vrf veth
[   18.237980][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.238648][ T301] 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) 
[ 18.239167][ T301] 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
[   18.240906][  T301] RSP: 0018:ffffc900004e7140 EFLAGS: 00010246
[   18.242062][  T301] RAX: 0000000000000000 RBX: ffff888008b6c000 RCX: 0000000000000001
[   18.242816][  T301] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[   18.243575][  T301] RBP: ffffc900004e7230 R08: ffff88800a5a8800 R09: 0000000000000000
[   18.244353][  T301] R10: ffffc900004e75c8 R11: ffffffff9ba50668 R12: 1ffff9200009ce2c
[   18.245116][  T301] R13: 0000000000002710 R14: ffffc900004e7880 R15: ffff888009573860
[   18.245889][  T301] FS:  00007f32a4739800(0000) GS:ffff8880994b7000(0000) knlGS:0000000000000000
[   18.246755][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.247428][  T301] CR2: 00000000004e5aa0 CR3: 0000000009435001 CR4: 0000000000772ef0
[   18.248166][  T301] PKRU: 55555554
[   18.248543][  T301] Call Trace:
[   18.248907][  T301]  <TASK>
[ 18.249432][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.249952][ T301] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.250448][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.250949][ T301] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 18.251423][ T301] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 18.251957][ T301] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 18.252478][ T301] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 18.252926][ T301] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.253625][ T301] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.254115][ T301] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.254638][ T301] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.255146][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.255632][ T301] ? __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) 
[ 18.255949][ T301] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.256318][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.256608][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.256888][ T301] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.257163][ T301] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.257491][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.257771][ T301] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.258044][ T301] ? __create_object (mm/kmemleak.c:771) 
[ 18.258350][ T301] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.258651][ T301] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.258941][ T301] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.259311][ T301] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.259598][ T301] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.259907][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.260190][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.260646][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.261145][ T301] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.261660][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.262183][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.262703][ T301] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.262990][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.263311][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.263601][ T301] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.263884][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.264200][ T301] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.264598][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.264927][ T301] ? 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) 
[ 18.265272][ T301] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.265813][ T301] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.266311][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.266830][ T301] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.267363][ T301] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.267853][ T301] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.268376][ T301] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.268889][ T301] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.269387][ T301] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.269749][ T301] ___sys_sendmsg (net/socket.c:2670) 
[ 18.270035][ T301] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.270377][ T301] ? __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) 
[ 18.270740][ T301] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.271029][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.271366][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.271670][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.271950][ T301] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.272228][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.272550][ T301] __sys_sendmsg (net/socket.c:2700) 
[ 18.272822][ T301] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.273167][ T301] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.273541][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.273830][ T301] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.274108][ T301] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.274511][  T301] RIP: 0033:0x7f32a49061e7
[ 18.274830][ T301] 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)
[   18.276191][  T301] RSP: 002b:00007ffcf4140a48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.276657][  T301] RAX: ffffffffffffffda RBX: 00007ffcf4141170 RCX: 00007f32a49061e7
[   18.277178][  T301] RDX: 0000000000000000 RSI: 00007ffcf4140ab0 RDI: 0000000000000005
[   18.277637][  T301] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   18.278166][  T301] R10: 00007f32a4803ee8 R11: 0000000000000246 R12: 0000000000000004
[   18.278699][  T301] R13: 00000000686e6510 R14: 0000000000499600 R15: 0000000000000000
| [   20.944060][  T343] ------------[ cut here ]------------
| [ 20.944851][ T343] WARNING: CPU: 0 PID: 343 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) 
| [   20.945459][  T343] Modules linked in: 8021q vrf veth
| [   20.946339][  T343] Tainted: [W]=WARN
[   20.946557][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.946905][ T343] 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) 
[ 20.947193][ T343] 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
[   20.948200][  T343] RSP: 0018:ffffc900006b7140 EFLAGS: 00010246
[   20.948591][  T343] RAX: 0000000000000000 RBX: ffff88800aa9c000 RCX: 0000000000000001
[   20.949008][  T343] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[   20.949448][  T343] RBP: ffffc900006b7230 R08: ffff8880051c5000 R09: 0000000000000000
[   20.949864][  T343] R10: ffffc900006b75c8 R11: ffffffff9ba50668 R12: 1ffff920000d6e2c
[   20.950302][  T343] R13: 0000000000002710 R14: ffffc900006b7880 R15: ffff8880052cb4e0
[   20.950717][  T343] FS:  00007f58a4339800(0000) GS:ffff8880994b7000(0000) knlGS:0000000000000000
[   20.951203][  T343] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.951585][  T343] CR2: 00000000004e5ab8 CR3: 000000000c4d1001 CR4: 0000000000772ef0
[   20.952004][  T343] PKRU: 55555554
[   20.952209][  T343] Call Trace:
[   20.952457][  T343]  <TASK>
[ 20.952601][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.952887][ T343] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.953161][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.953463][ T343] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.953744][ T343] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 20.954021][ T343] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 20.954321][ T343] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 20.954604][ T343] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.954972][ T343] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.955249][ T343] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.955548][ T343] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.955830][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.956111][ T343] ? __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) 
[ 20.956422][ T343] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.956805][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.957085][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.957382][ T343] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.957660][ T343] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.957941][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.958218][ T343] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.958516][ T343] ? __create_object (mm/kmemleak.c:771) 
[ 20.958793][ T343] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.959067][ T343] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.959360][ T343] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.959704][ T343] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.959985][ T343] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.960264][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.960576][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.960860][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.961139][ T343] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.961440][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.961719][ T343] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.961995][ T343] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.962294][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.962588][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.962867][ T343] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.963142][ T343] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.963440][ T343] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.963728][ T343] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.964003][ T343] ? 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) 
[ 20.964308][ T343] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.964603][ T343] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.964897][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.965181][ T343] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.965486][ T343] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.965766][ T343] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.966049][ T343] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.966359][ T343] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.966636][ T343] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.966988][ T343] ___sys_sendmsg (net/socket.c:2670) 
[ 20.967260][ T343] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.967573][ T343] ? __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) 
[ 20.967917][ T343] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.968200][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.968502][ T343] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.968783][ T343] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.969060][ T343] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.969370][ T343] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.969655][ T343] __sys_sendmsg (net/socket.c:2700) 
[ 20.969935][ T343] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.970331][ T343] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.970630][ T343] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.970919][ T343] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.971198][ T343] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.971568][  T343] RIP: 0033:0x7f58a45061e7
[ 20.971856][ T343] 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)
[   20.972865][  T343] RSP: 002b:00007fffbac7f2e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.973311][  T343] RAX: ffffffffffffffda RBX: 00007fffbac7fa10 RCX: 00007f58a45061e7
[   20.973738][  T343] RDX: 0000000000000000 RSI: 00007fffbac7f350 RDI: 0000000000000005
[   20.974154][  T343] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   20.974590][  T343] R10: 00007f58a4403ee8 R11: 0000000000000246 R12: 0000000000000004
[   20.975019][  T343] R13: 00000000686e6512 R14: 0000000000499600 R15: 0000000000000000
| [   24.344721][  T402] ------------[ cut here ]------------
| [ 24.345110][ T402] WARNING: CPU: 2 PID: 402 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) 
| [   24.346942][  T402] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   24.348154][  T402] Tainted: [W]=WARN
[   24.348408][  T402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.348766][ T402] 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) 
[ 24.349078][ T402] 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
[   24.350118][  T402] RSP: 0018:ffffc900005d7140 EFLAGS: 00010246
[   24.350507][  T402] RAX: 0000000000000000 RBX: ffff888008931000 RCX: 0000000000000001
[   24.350940][  T402] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[   24.351379][  T402] RBP: ffffc900005d7230 R08: ffff88800b405000 R09: 0000000000000000
[   24.351805][  T402] R10: ffffc900005d75c8 R11: ffffffff9ba50668 R12: 1ffff920000bae2c
[   24.352232][  T402] R13: 0000000000002710 R14: ffffc900005d7880 R15: ffff88800c49ce60
[   24.352671][  T402] FS:  00007f7c06b28800(0000) GS:ffff8880995b7000(0000) knlGS:0000000000000000
[   24.353172][  T402] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.353551][  T402] CR2: 00000000004e5aa8 CR3: 00000000093a1004 CR4: 0000000000772ef0
[   24.353985][  T402] PKRU: 55555554
[   24.354208][  T402] Call Trace:
[   24.354435][  T402]  <TASK>
[ 24.354589][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.354896][ T402] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.355194][ T402] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.355513][ T402] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 24.355817][ T402] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 24.356114][ T402] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 24.356419][ T402] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 24.356713][ T402] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.357075][ T402] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.357375][ T402] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.357661][ T402] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.357960][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.358250][ T402] ? __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) 
[ 24.358551][ T402] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.358904][ T402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.359195][ T402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.359490][ T402] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.359779][ T402] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.360071][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.360373][ T402] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.360657][ T402] ? __create_object (mm/kmemleak.c:771) 
[ 24.360949][ T402] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.361249][ T402] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.361554][ T402] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.361906][ T402] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.362203][ T402] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.362517][ T402] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.362805][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.363103][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.363410][ T402] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.363695][ T402] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.363986][ T402] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.364285][ T402] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.364578][ T402] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.364893][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.365188][ T402] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.365508][ T402] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.365797][ T402] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.366095][ T402] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.366392][ T402] ? 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) 
[ 24.366681][ T402] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.366981][ T402] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.367268][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.367574][ T402] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.367863][ T402] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.368150][ T402] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.368452][ T402] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.368743][ T402] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.369037][ T402] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.369417][ T402] ___sys_sendmsg (net/socket.c:2670) 
[ 24.369710][ T402] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.369995][ T402] ? __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) 
[ 24.370359][ T402] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.370648][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.370939][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.371236][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.371536][ T402] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 24.371822][ T402] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.372119][ T402] __sys_sendmsg (net/socket.c:2700) 
[ 24.372414][ T402] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.372767][ T402] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.373064][ T402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.373371][ T402] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.373660][ T402] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.374015][  T402] RIP: 0033:0x7f7c06cf51e7
[ 24.374321][ T402] 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)
[   24.375337][  T402] RSP: 002b:00007ffd2ae05dd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.375774][  T402] RAX: ffffffffffffffda RBX: 00007ffd2ae06500 RCX: 00007f7c06cf51e7
[   24.376198][  T402] RDX: 0000000000000000 RSI: 00007ffd2ae05e40 RDI: 0000000000000005
[   24.376630][  T402] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   24.377054][  T402] R10: 00007f7c06bf2ee8 R11: 0000000000000246 R12: 0000000000000004
[   24.377502][  T402] R13: 00000000686e6516 R14: 0000000000499600 R15: 0000000000000000
| [   24.861839][  T414] ------------[ cut here ]------------
| [ 24.862251][ T414] WARNING: CPU: 2 PID: 414 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) 
| [   24.862976][  T414] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   24.864423][  T414] Tainted: [W]=WARN
[   24.864717][  T414] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.865201][ T414] 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) 
[ 24.865613][ T414] 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
[   24.866866][  T414] RSP: 0018:ffffc90000686ef0 EFLAGS: 00010246
[   24.867329][  T414] RAX: 0000000000000000 RBX: ffff88800cc12000 RCX: 0000000000000001
[   24.867881][  T414] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[   24.868437][  T414] RBP: ffffc90000686fe0 R08: 0000000000000000 R09: 0000000000000000
[   24.868998][  T414] R10: ffffc90000687010 R11: ffffffff9baa8918 R12: 1ffff920000d0de2
[   24.869545][  T414] R13: 0000000000002710 R14: ffffc90000687010 R15: ffff88800cc12f08
[   24.870083][  T414] FS:  00007fe526f2a800(0000) GS:ffff8880995b7000(0000) knlGS:0000000000000000
[   24.870712][  T414] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.871171][  T414] CR2: 00007f5059343258 CR3: 000000000bdcd005 CR4: 0000000000772ef0
[   24.871716][  T414] PKRU: 55555554
[   24.871994][  T414] Call Trace:
[   24.872265][  T414]  <TASK>
[ 24.872481][ T414] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.872848][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.873221][ T414] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 24.873591][ T414] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 24.874035][ T414] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 24.874411][ T414] netif_set_mtu (net/core/dev.c:9652) 
[ 24.874797][ T414] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.875175][ T414] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 24.875716][ T414] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.876002][ T414] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 24.876521][ T414] br_add_if (net/bridge/br_if.c:697) bridge 
[ 24.876952][ T414] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 24.877331][ T414] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 24.877725][ T414] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.878211][ T414] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.878594][ T414] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.878969][ T414] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.879354][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.879741][ T414] ? __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) 
[ 24.880114][ T414] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.880575][ T414] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.880977][ T414] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.881326][ T414] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.881657][ T414] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.881987][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.882334][ T414] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.882660][ T414] ? __create_object (mm/kmemleak.c:771) 
[ 24.883008][ T414] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.883343][ T414] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.883671][ T414] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.884064][ T414] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.884420][ T414] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.884760][ T414] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.885085][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.885424][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.885768][ T414] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.886104][ T414] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.886440][ T414] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.886779][ T414] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.887135][ T414] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.887479][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.887806][ T414] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.888128][ T414] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.888479][ T414] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.888817][ T414] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.889138][ T414] ? 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) 
[ 24.889480][ T414] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.889809][ T414] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.890128][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.890483][ T414] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.890813][ T414] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.891164][ T414] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.891505][ T414] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.891849][ T414] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.892189][ T414] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.892613][ T414] ___sys_sendmsg (net/socket.c:2670) 
[ 24.892952][ T414] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.893284][ T414] ? __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) 
[ 24.893684][ T414] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.894023][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.894377][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.894711][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.895055][ T414] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 24.895394][ T414] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.895724][ T414] __sys_sendmsg (net/socket.c:2700) 
[ 24.896054][ T414] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.896472][ T414] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.896825][ T414] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.897151][ T414] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.897483][ T414] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.898159][  T414] RIP: 0033:0x7fe5270f71e7
[ 24.898745][ T414] 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)
[   24.900112][  T414] RSP: 002b:00007ffea93062d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.900599][  T414] RAX: ffffffffffffffda RBX: 00007ffea9306a00 RCX: 00007fe5270f71e7
[   24.901073][  T414] RDX: 0000000000000000 RSI: 00007ffea9306340 RDI: 0000000000000005
[   24.901809][  T414] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   24.902308][  T414] R10: 000000003b364910 R11: 0000000000000246 R12: 0000000000000004
[   24.902781][  T414] R13: 00000000686e6516 R14: 0000000000499600 R15: 0000000000000000
| [   25.558848][  T431] ------------[ cut here ]------------
| [ 25.559168][ T431] WARNING: CPU: 0 PID: 431 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) 
| [   25.559821][  T431] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   25.561941][  T431] Tainted: [W]=WARN
[   25.562190][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.562609][ T431] 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) 
[ 25.562941][ T431] 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
[   25.564104][  T431] RSP: 0018:ffffc90000626ef0 EFLAGS: 00010246
[   25.564526][  T431] RAX: 0000000000000000 RBX: ffff88800b46a000 RCX: 0000000000000001
[   25.565053][  T431] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[   25.565532][  T431] RBP: ffffc90000626fe0 R08: 0000000000000000 R09: 0000000000000000
[   25.565997][  T431] R10: ffffc90000627010 R11: ffffffff9baa8918 R12: 1ffff920000c4de2
[   25.566467][  T431] R13: 0000000000002710 R14: ffffc90000627010 R15: ffff88800b46af08
[   25.566928][  T431] FS:  00007f4ac8239800(0000) GS:ffff8880994b7000(0000) knlGS:0000000000000000
[   25.567473][  T431] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.567866][  T431] CR2: 00000000004e5418 CR3: 000000000ab6e006 CR4: 0000000000772ef0
[   25.568331][  T431] PKRU: 55555554
[   25.568560][  T431] Call Trace:
[   25.568789][  T431]  <TASK>
[ 25.568982][ T431] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.569299][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.569610][ T431] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 25.569915][ T431] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 25.570306][ T431] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 25.570656][ T431] netif_set_mtu (net/core/dev.c:9652) 
[ 25.570968][ T431] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.571299][ T431] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 25.571734][ T431] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.571970][ T431] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 25.572410][ T431] br_add_if (net/bridge/br_if.c:697) bridge 
[ 25.572770][ T431] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 25.573124][ T431] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 25.573452][ T431] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 25.573847][ T431] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 25.574183][ T431] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 25.574509][ T431] ? __kernel_text_address (kernel/extable.c:79) 
[ 25.574841][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.575168][ T431] ? __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) 
[ 25.575505][ T431] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 25.575889][ T431] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.576213][ T431] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.576532][ T431] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 25.576837][ T431] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 25.577183][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.577507][ T431] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.577817][ T431] ? __create_object (mm/kmemleak.c:771) 
[ 25.578129][ T431] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 25.578445][ T431] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 25.578760][ T431] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 25.579154][ T431] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 25.579479][ T431] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.579792][ T431] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.580111][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.580437][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.580747][ T431] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.581087][ T431] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.581415][ T431] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.581726][ T431] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.582039][ T431] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.582357][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.582669][ T431] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.582990][ T431] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.583313][ T431] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.583633][ T431] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.583942][ T431] ? 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) 
[ 25.584252][ T431] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 25.584573][ T431] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.584924][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.585244][ T431] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.585577][ T431] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.585887][ T431] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.586203][ T431] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.586524][ T431] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.586835][ T431] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.587232][ T431] ___sys_sendmsg (net/socket.c:2670) 
[ 25.587549][ T431] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 25.587859][ T431] ? __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) 
[ 25.588243][ T431] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.588565][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.588898][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.589221][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.589542][ T431] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 25.589848][ T431] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.590167][ T431] __sys_sendmsg (net/socket.c:2700) 
[ 25.590484][ T431] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 25.590874][ T431] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.591194][ T431] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.591512][ T431] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.591822][ T431] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.592200][  T431] RIP: 0033:0x7f4ac84061e7
[ 25.592532][ T431] 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)
[   25.593676][  T431] RSP: 002b:00007ffdfff5bcc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.594143][  T431] RAX: ffffffffffffffda RBX: 00007ffdfff5c3f0 RCX: 00007f4ac84061e7
[   25.594622][  T431] RDX: 0000000000000000 RSI: 00007ffdfff5bd30 RDI: 0000000000000005
[   25.595123][  T431] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   25.595617][  T431] R10: 0000000031df4910 R11: 0000000000000246 R12: 0000000000000004
[   25.596106][  T431] R13: 00000000686e6517 R14: 0000000000499600 R15: 0000000000000000
| [   26.250221][  T449] ------------[ cut here ]------------
| [ 26.251815][ T449] WARNING: CPU: 3 PID: 449 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) 
| [   26.252378][  T449] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   26.253461][  T449] Tainted: [W]=WARN
[   26.253672][  T449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.254014][ T449] 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) 
[ 26.254305][ T449] 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
[   26.255311][  T449] RSP: 0018:ffffc90000597140 EFLAGS: 00010246
[   26.255661][  T449] RAX: 0000000000000000 RBX: ffff88800aa99000 RCX: 0000000000000001
[   26.256075][  T449] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[   26.256501][  T449] RBP: ffffc90000597230 R08: ffff8880058ea000 R09: 0000000000000000
[   26.257003][  T449] R10: ffffc900005975c8 R11: ffffffff9ba50668 R12: 1ffff920000b2e2c
[   26.257438][  T449] R13: 0000000000002710 R14: ffffc90000597880 R15: ffff888005075fe0
[   26.257851][  T449] FS:  00007f09c0e02800(0000) GS:ffff888099637000(0000) knlGS:0000000000000000
[   26.258339][  T449] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.258690][  T449] CR2: 00000000004e5ab0 CR3: 000000000cf8c004 CR4: 0000000000772ef0
[   26.259102][  T449] PKRU: 55555554
[   26.259318][  T449] Call Trace:
[   26.259525][  T449]  <TASK>
[ 26.259666][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.259947][ T449] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.260221][ T449] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.260511][ T449] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.260788][ T449] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 26.261065][ T449] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 26.261353][ T449] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 26.261633][ T449] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 26.261980][ T449] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 26.262259][ T449] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 26.262541][ T449] ? __kernel_text_address (kernel/extable.c:79) 
[ 26.262820][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.263096][ T449] ? __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) 
[ 26.263377][ T449] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 26.263717][ T449] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.263994][ T449] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.264270][ T449] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 26.264558][ T449] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 26.264850][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.265127][ T449] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.265410][ T449] ? __create_object (mm/kmemleak.c:771) 
[ 26.265689][ T449] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 26.265964][ T449] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 26.266240][ T449] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 26.266616][ T449] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 26.266904][ T449] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.267190][ T449] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.267475][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.267757][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.268033][ T449] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.268315][ T449] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.268593][ T449] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.268872][ T449] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.269150][ T449] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.269441][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.269723][ T449] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.269998][ T449] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.270282][ T449] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.270568][ T449] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.270847][ T449] ? 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) 
[ 26.271125][ T449] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 26.271416][ T449] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.271691][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.271972][ T449] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.272252][ T449] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.272538][ T449] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.272828][ T449] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.273113][ T449] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.273396][ T449] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.273751][ T449] ___sys_sendmsg (net/socket.c:2670) 
[ 26.274024][ T449] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.274306][ T449] ? __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) 
[ 26.274649][ T449] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.274954][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.275232][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.275522][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.275796][ T449] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.276070][ T449] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.276361][ T449] __sys_sendmsg (net/socket.c:2700) 
[ 26.276634][ T449] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.276975][ T449] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.277266][ T449] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.277551][ T449] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.277828][ T449] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.278171][  T449] RIP: 0033:0x7f09c0fcf1e7
[ 26.278466][ T449] 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)
[   26.279461][  T449] RSP: 002b:00007fff9523f368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.279876][  T449] RAX: ffffffffffffffda RBX: 00007fff9523fa90 RCX: 00007f09c0fcf1e7
[   26.280295][  T449] RDX: 0000000000000000 RSI: 00007fff9523f3d0 RDI: 0000000000000005
[   26.280706][  T449] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   26.281120][  T449] R10: 00007f09c0eccee8 R11: 0000000000000246 R12: 0000000000000004
[   26.281539][  T449] R13: 00000000686e6518 R14: 0000000000499600 R15: 0000000000000000
| [   26.756904][  T461] ------------[ cut here ]------------
| [ 26.757265][ T461] WARNING: CPU: 2 PID: 461 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) 
| [   26.758197][  T461] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   26.760242][  T461] Tainted: [W]=WARN
[   26.760700][  T461] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.761433][ T461] 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) 
[ 26.762012][ T461] 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
[   26.764008][  T461] RSP: 0018:ffffc90000b86ef0 EFLAGS: 00010246
[   26.764743][  T461] RAX: 0000000000000000 RBX: ffff88800cc12000 RCX: 0000000000000001
[   26.765631][  T461] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[   26.766531][  T461] RBP: ffffc90000b86fe0 R08: 0000000000000000 R09: 0000000000000000
[   26.767433][  T461] R10: ffffc90000b87010 R11: ffffffff9baa8918 R12: 1ffff92000170de2
[   26.768305][  T461] R13: 0000000000002710 R14: ffffc90000b87010 R15: ffff88800cc12f08
[   26.769185][  T461] FS:  00007f6d851a5800(0000) GS:ffff8880995b7000(0000) knlGS:0000000000000000
[   26.770226][  T461] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.770980][  T461] CR2: 00000000004e5410 CR3: 000000000ebcf003 CR4: 0000000000772ef0
[   26.771859][  T461] PKRU: 55555554
[   26.772234][  T461] Call Trace:
[   26.772697][  T461]  <TASK>
[ 26.773010][ T461] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.773622][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.774221][ T461] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 26.774833][ T461] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 26.775584][ T461] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 26.776183][ T461] netif_set_mtu (net/core/dev.c:9652) 
[ 26.776798][ T461] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.777419][ T461] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 26.778209][ T461] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.778700][ T461] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 26.779496][ T461] br_add_if (net/bridge/br_if.c:697) bridge 
[ 26.780148][ T461] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 26.780746][ T461] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 26.781329][ T461] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 26.782054][ T461] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 26.782645][ T461] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 26.783215][ T461] ? __kernel_text_address (kernel/extable.c:79) 
[ 26.783807][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.784415][ T461] ? __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) 
[ 26.784999][ T461] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 26.785722][ T461] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.786308][ T461] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.786886][ T461] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 26.787502][ T461] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 26.788072][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.788674][ T461] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.789245][ T461] ? __create_object (mm/kmemleak.c:771) 
[ 26.789844][ T461] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 26.790431][ T461] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 26.790990][ T461] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 26.791713][ T461] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 26.792313][ T461] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.792740][ T461] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.793083][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.793424][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.793993][ T461] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.794327][ T461] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.794651][ T461] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.795005][ T461] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.795565][ T461] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.795955][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.796564][ T461] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.797066][ T461] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.797628][ T461] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.797977][ T461] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.798308][ T461] ? 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) 
[ 26.798630][ T461] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 26.799191][ T461] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.799528][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.799867][ T461] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.800189][ T461] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.800743][ T461] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.801085][ T461] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.801416][ T461] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.801734][ T461] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.802388][ T461] ___sys_sendmsg (net/socket.c:2670) 
[ 26.802702][ T461] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.803035][ T461] ? __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) 
[ 26.803661][ T461] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.804125][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.804720][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.805356][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.805917][ T461] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.806478][ T461] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.806808][ T461] __sys_sendmsg (net/socket.c:2700) 
[ 26.807141][ T461] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.807775][ T461] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.808122][ T461] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.808456][ T461] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.808783][ T461] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.809429][  T461] RIP: 0033:0x7f6d853721e7
[ 26.809760][ T461] 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)
[   26.811145][  T461] RSP: 002b:00007ffcbb8b1228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.811642][  T461] RAX: ffffffffffffffda RBX: 00007ffcbb8b1950 RCX: 00007f6d853721e7
[   26.812775][  T461] RDX: 0000000000000000 RSI: 00007ffcbb8b1290 RDI: 0000000000000005
[   26.813284][  T461] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   26.813760][  T461] R10: 000000002db21910 R11: 0000000000000246 R12: 0000000000000004
[   26.814493][  T461] R13: 00000000686e6518 R14: 0000000000499600 R15: 0000000000000000
| [   27.475490][  T478] ------------[ cut here ]------------
| [ 27.475827][ T478] WARNING: CPU: 3 PID: 478 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) 
| [   27.476490][  T478] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   27.477743][  T478] Tainted: [W]=WARN
[   27.477989][  T478] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.478424][ T478] 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) 
[ 27.478827][ T478] 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
[   27.479971][  T478] RSP: 0018:ffffc90000c66ef0 EFLAGS: 00010246
[   27.480372][  T478] RAX: 0000000000000000 RBX: ffff88800b46a000 RCX: 0000000000000001
[   27.480849][  T478] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[   27.481352][  T478] RBP: ffffc90000c66fe0 R08: 0000000000000000 R09: 0000000000000000
[   27.481853][  T478] R10: ffffc90000c67010 R11: ffffffff9baa8918 R12: 1ffff9200018cde2
[   27.482351][  T478] R13: 0000000000002710 R14: ffffc90000c67010 R15: ffff88800b46af08
[   27.482861][  T478] FS:  00007f0b07283800(0000) GS:ffff888099637000(0000) knlGS:0000000000000000
[   27.483435][  T478] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.483874][  T478] CR2: 00000000004e5418 CR3: 000000000e89e002 CR4: 0000000000772ef0
[   27.484379][  T478] PKRU: 55555554
[   27.484622][  T478] Call Trace:
[   27.484877][  T478]  <TASK>
[ 27.485047][ T478] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.485385][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.485730][ T478] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 27.486061][ T478] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 27.486478][ T478] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 27.486803][ T478] netif_set_mtu (net/core/dev.c:9652) 
[ 27.487142][ T478] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.487497][ T478] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 27.487960][ T478] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.488208][ T478] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 27.488663][ T478] br_add_if (net/bridge/br_if.c:697) bridge 
[ 27.489038][ T478] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 27.489390][ T478] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 27.489729][ T478] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 27.490146][ T478] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 27.490499][ T478] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 27.490849][ T478] ? __kernel_text_address (kernel/extable.c:79) 
[ 27.491179][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.491545][ T478] ? __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) 
[ 27.491872][ T478] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 27.492300][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.492631][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.492966][ T478] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 27.493312][ T478] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 27.493637][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.493965][ T478] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.494313][ T478] ? __create_object (mm/kmemleak.c:771) 
[ 27.494652][ T478] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 27.494992][ T478] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 27.495341][ T478] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 27.495744][ T478] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 27.496074][ T478] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.496410][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.496733][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.497081][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.497417][ T478] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.497750][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.498074][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.498415][ T478] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.498762][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.499092][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.499441][ T478] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.499765][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.500099][ T478] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.500444][ T478] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.500764][ T478] ? 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) 
[ 27.501116][ T478] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.501455][ T478] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.501762][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.502077][ T478] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.502398][ T478] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.502719][ T478] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.503039][ T478] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.503377][ T478] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.503682][ T478] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.504092][ T478] ___sys_sendmsg (net/socket.c:2670) 
[ 27.504406][ T478] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 27.504726][ T478] ? __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) 
[ 27.505126][ T478] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.505463][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.505790][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.506335][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 27.506645][ T478] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 27.506949][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.507262][ T478] __sys_sendmsg (net/socket.c:2700) 
[ 27.507798][ T478] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 27.508178][ T478] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.508505][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.508814][ T478] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.509348][ T478] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.509726][  T478] RIP: 0033:0x7f0b074501e7
[ 27.510040][ T478] 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)
[   27.511380][  T478] RSP: 002b:00007ffcdd625b78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.511845][  T478] RAX: ffffffffffffffda RBX: 00007ffcdd6262a0 RCX: 00007f0b074501e7
[   27.512547][  T478] RDX: 0000000000000000 RSI: 00007ffcdd625be0 RDI: 0000000000000005
[   27.513010][  T478] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   27.513702][  T478] R10: 000000003f133910 R11: 0000000000000246 R12: 0000000000000004
[   27.514161][  T478] R13: 00000000686e6519 R14: 0000000000499600 R15: 0000000000000000
| [  113.021114][  T847] ------------[ cut here ]------------
| [ 113.021479][ T847] WARNING: CPU: 0 PID: 847 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [  113.022101][  T847] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [  113.023760][  T847] Tainted: [W]=WARN
[  113.024002][  T847] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 113.024666][ T847] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 113.025003][ T847] 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
[  113.026142][  T847] RSP: 0018:ffffc9000112ef70 EFLAGS: 00010246
[  113.026556][  T847] RAX: 0000000000000000 RBX: ffff88800b46a000 RCX: 0000000000000001
[  113.027025][  T847] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[  113.027512][  T847] RBP: ffffc9000112f058 R08: 0000000000000000 R09: 0000000000000000
[  113.028001][  T847] R10: ffffc9000112f088 R11: ffffffff97000130 R12: 1ffff92000225df2
[  113.028488][  T847] R13: 0000000000002710 R14: ffffc9000112f088 R15: ffff88800b46af08
[  113.028978][  T847] FS:  00007ffa6eef3800(0000) GS:ffff8880994b7000(0000) knlGS:0000000000000000
[  113.029527][  T847] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  113.029951][  T847] CR2: 00000000004e5630 CR3: 000000000b6c9004 CR4: 0000000000772ef0
[  113.030434][  T847] PKRU: 55555554
[  113.030681][  T847] Call Trace:
[  113.030913][  T847]  <TASK>
[ 113.031070][ T847] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 113.031469][ T847] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 113.031856][ T847] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 113.032166][ T847] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 113.032497][ T847] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 113.032824][ T847] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 113.033132][ T847] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 113.033455][ T847] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 113.033776][ T847] ? ___sys_sendmsg (net/socket.c:2670) 
[ 113.034087][ T847] ? __sys_sendmsg (net/socket.c:2700) 
[ 113.034403][ T847] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 113.034718][ T847] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 113.035169][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.035507][ T847] netif_set_mtu (net/core/dev.c:9652) 
[ 113.035839][ T847] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 113.036180][ T847] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 113.036451][ T847] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 113.036903][ T847] br_del_if (net/bridge/br_if.c:743) bridge 
[ 113.037246][ T847] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 113.037569][ T847] do_set_master (net/core/rtnetlink.c:2932) 
[ 113.037896][ T847] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 113.038206][ T847] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 113.038624][ T847] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 113.038951][ T847] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 113.039262][ T847] ? __kernel_text_address (kernel/extable.c:79) 
[ 113.039583][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.039896][ T847] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 113.040220][ T847] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 113.040622][ T847] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.040940][ T847] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.041291][ T847] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 113.041600][ T847] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 113.041907][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.042242][ T847] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 113.042554][ T847] ? __create_object (mm/kmemleak.c:771) 
[ 113.042863][ T847] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 113.043184][ T847] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 113.043500][ T847] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 113.043891][ T847] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 113.044221][ T847] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 113.044550][ T847] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 113.044863][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.045192][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.045507][ T847] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 113.045810][ T847] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 113.046117][ T847] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 113.046452][ T847] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 113.046758][ T847] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 113.047104][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.047432][ T847] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 113.047740][ T847] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 113.048047][ T847] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 113.048419][ T847] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 113.048744][ T847] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 113.049050][ T847] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 113.049391][ T847] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 113.049711][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.050019][ T847] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 113.050348][ T847] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 113.050653][ T847] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 113.050974][ T847] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 113.051311][ T847] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 113.051618][ T847] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 113.052009][ T847] ___sys_sendmsg (net/socket.c:2670) 
[ 113.052341][ T847] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 113.052657][ T847] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 113.053038][ T847] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 113.053377][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.053692][ T847] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.054005][ T847] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.054317][ T847] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 113.054655][ T847] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 113.054982][ T847] __sys_sendmsg (net/socket.c:2700) 
[ 113.055303][ T847] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 113.055703][ T847] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 113.056019][ T847] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.056340][ T847] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 113.056665][ T847] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  113.057047][  T847] RIP: 0033:0x7ffa6f0c01e7
[ 113.057373][ T847] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[  113.058509][  T847] RSP: 002b:00007ffcb0e9b638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  113.058971][  T847] RAX: ffffffffffffffda RBX: 00007ffcb0e9bd60 RCX: 00007ffa6f0c01e7
[  113.059441][  T847] RDX: 0000000000000000 RSI: 00007ffcb0e9b6a0 RDI: 0000000000000005
[  113.059910][  T847] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  113.060402][  T847] R10: 00007ffa6efbdee8 R11: 0000000000000246 R12: 0000000000000003
[  113.060903][  T847] R13: 00000000686e656e R14: 0000000000499600 R15: 0000000000000000
| [  113.542649][  T855] ------------[ cut here ]------------
| [ 113.543069][ T855] WARNING: CPU: 0 PID: 855 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) 
| [  113.543708][  T855] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [  113.545019][  T855] Tainted: [W]=WARN
[  113.545270][  T855] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 113.545671][ T855] 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) 
[ 113.545994][ T855] 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
[  113.547185][  T855] RSP: 0018:ffffc9000118ef70 EFLAGS: 00010246
[  113.548062][  T855] RAX: 0000000000000000 RBX: ffff88800cc12000 RCX: 0000000000000001
[  113.548567][  T855] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[  113.549026][  T855] RBP: ffffc9000118f058 R08: 0000000000000000 R09: 0000000000000000
[  113.549516][  T855] R10: ffffc9000118f088 R11: ffffffff9b179160 R12: 1ffff92000231df2
[  113.549979][  T855] R13: 0000000000002710 R14: ffffc9000118f088 R15: ffff88800cc12f08
[  113.550476][  T855] FS:  00007f6c2376a800(0000) GS:ffff8880994b7000(0000) knlGS:0000000000000000
[  113.551017][  T855] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  113.551440][  T855] CR2: 00000000004e5628 CR3: 0000000009a43005 CR4: 0000000000772ef0
[  113.551909][  T855] PKRU: 55555554
[  113.552145][  T855] Call Trace:
[  113.552407][  T855]  <TASK>
[ 113.552566][ T855] ? __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) 
[ 113.552953][ T855] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 113.553358][ T855] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 113.553679][ T855] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 113.553988][ T855] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 113.554342][ T855] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 113.554658][ T855] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 113.554983][ T855] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 113.555321][ T855] ? ___sys_sendmsg (net/socket.c:2670) 
[ 113.555626][ T855] ? __sys_sendmsg (net/socket.c:2700) 
[ 113.555933][ T855] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 113.556250][ T855] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 113.556653][ T855] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.556976][ T855] netif_set_mtu (net/core/dev.c:9652) 
[ 113.557300][ T855] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 113.557639][ T855] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 113.557876][ T855] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 113.558332][ T855] br_del_if (net/bridge/br_if.c:743) bridge 
[ 113.558697][ T855] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 113.559005][ T855] do_set_master (net/core/rtnetlink.c:2932) 
[ 113.559327][ T855] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 113.559671][ T855] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 113.560057][ T855] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 113.560378][ T855] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 113.560701][ T855] ? __kernel_text_address (kernel/extable.c:79) 
[ 113.561024][ T855] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.561344][ T855] ? __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) 
[ 113.561667][ T855] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 113.562048][ T855] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.562381][ T855] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.562707][ T855] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 113.563012][ T855] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 113.563339][ T855] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.563655][ T855] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 113.563957][ T855] ? __create_object (mm/kmemleak.c:771) 
[ 113.564266][ T855] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 113.564594][ T855] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 113.564912][ T855] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 113.565303][ T855] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 113.565650][ T855] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 113.565971][ T855] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 113.566304][ T855] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.566646][ T855] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.566955][ T855] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 113.567257][ T855] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 113.567603][ T855] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 113.567909][ T855] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 113.568215][ T855] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 113.568546][ T855] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.568875][ T855] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 113.569182][ T855] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 113.569497][ T855] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 113.569826][ T855] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 113.570129][ T855] ? 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) 
[ 113.570456][ T855] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 113.570795][ T855] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 113.571098][ T855] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.571419][ T855] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 113.571756][ T855] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 113.572063][ T855] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 113.572386][ T855] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 113.572715][ T855] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 113.573031][ T855] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 113.573429][ T855] ___sys_sendmsg (net/socket.c:2670) 
[ 113.573743][ T855] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 113.574052][ T855] ? __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) 
[ 113.574454][ T855] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 113.574774][ T855] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.575096][ T855] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.575427][ T855] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.575732][ T855] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 113.576050][ T855] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 113.576374][ T855] __sys_sendmsg (net/socket.c:2700) 
[ 113.576677][ T855] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 113.577074][ T855] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 113.577399][ T855] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.577717][ T855] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 113.578061][ T855] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  113.578461][  T855] RIP: 0033:0x7f6c239371e7
[ 113.578781][ T855] 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)
[  113.579914][  T855] RSP: 002b:00007ffef0f18808 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  113.580395][  T855] RAX: ffffffffffffffda RBX: 00007ffef0f18f30 RCX: 00007f6c239371e7
[  113.580853][  T855] RDX: 0000000000000000 RSI: 00007ffef0f18870 RDI: 0000000000000005
[  113.581334][  T855] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  113.581794][  T855] R10: 00007f6c23834ee8 R11: 0000000000000246 R12: 0000000000000003
[  113.582296][  T855] R13: 00000000686e656f R14: 0000000000499600 R15: 0000000000000000
| [  113.912265][  T859] ------------[ cut here ]------------
| [ 113.912616][ T859] WARNING: CPU: 3 PID: 859 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) 
| [  113.913180][  T859] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [  113.915551][  T859] Tainted: [W]=WARN
[  113.915772][  T859] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 113.916119][ T859] 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) 
[ 113.916418][ T859] 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
[  113.917416][  T859] RSP: 0018:ffffc900011bf140 EFLAGS: 00010246
[  113.917781][  T859] RAX: 0000000000000000 RBX: ffff88800aa99000 RCX: 0000000000000001
[  113.918209][  T859] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[  113.918632][  T859] RBP: ffffc900011bf230 R08: ffff88800cce8800 R09: 0000000000000000
[  113.919073][  T859] R10: ffffc900011bf5c8 R11: ffffffff9ba50668 R12: 1ffff92000237e2c
[  113.919504][  T859] R13: 00000000000005dc R14: ffffc900011bf880 R15: ffff88800f5303e0
[  113.919925][  T859] FS:  00007ff3e72b7800(0000) GS:ffff888099637000(0000) knlGS:0000000000000000
[  113.920418][  T859] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  113.920764][  T859] CR2: 00000000004e5ab0 CR3: 000000000273d003 CR4: 0000000000772ef0
[  113.921196][  T859] PKRU: 55555554
[  113.921416][  T859] Call Trace:
[  113.921626][  T859]  <TASK>
[ 113.921769][ T859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.922060][ T859] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 113.922419][ T859] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 113.922711][ T859] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 113.922991][ T859] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 113.923307][ T859] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 113.923588][ T859] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 113.923873][ T859] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 113.924224][ T859] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 113.924520][ T859] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 113.924795][ T859] ? __kernel_text_address (kernel/extable.c:79) 
[ 113.925104][ T859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.925396][ T859] ? __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) 
[ 113.925703][ T859] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 113.926051][ T859] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.926343][ T859] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.926620][ T859] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 113.926899][ T859] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 113.927190][ T859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.927506][ T859] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 113.927782][ T859] ? __create_object (mm/kmemleak.c:771) 
[ 113.928071][ T859] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 113.928361][ T859] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 113.928659][ T859] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 113.929009][ T859] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 113.929309][ T859] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 113.929611][ T859] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 113.929886][ T859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.930173][ T859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.930466][ T859] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 113.930747][ T859] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 113.931028][ T859] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 113.931315][ T859] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 113.931595][ T859] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 113.931886][ T859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.932186][ T859] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 113.932484][ T859] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 113.932760][ T859] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 113.933046][ T859] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 113.933361][ T859] ? 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) 
[ 113.933647][ T859] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 113.933932][ T859] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 113.934206][ T859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.934503][ T859] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 113.934807][ T859] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 113.935121][ T859] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 113.935433][ T859] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 113.935719][ T859] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 113.936018][ T859] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 113.936385][ T859] ___sys_sendmsg (net/socket.c:2670) 
[ 113.936681][ T859] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 113.936958][ T859] ? __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) 
[ 113.937334][ T859] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 113.937615][ T859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.937905][ T859] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 113.938227][ T859] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 113.938519][ T859] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 113.938816][ T859] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 113.939099][ T859] __sys_sendmsg (net/socket.c:2700) 
[ 113.939394][ T859] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 113.939764][ T859] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 113.940051][ T859] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 113.940354][ T859] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 113.940641][ T859] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  113.941084][  T859] RIP: 0033:0x7ff3e74841e7
[ 113.941622][ T859] 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)
[  113.943074][  T859] RSP: 002b:00007ffcca33e378 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  113.943511][  T859] RAX: ffffffffffffffda RBX: 00007ffcca33eaa0 RCX: 00007ff3e74841e7
[  113.943926][  T859] RDX: 0000000000000000 RSI: 00007ffcca33e3e0 RDI: 0000000000000005
[  113.944351][  T859] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[  113.944765][  T859] R10: 00007ff3e7381ee8 R11: 0000000000000246 R12: 0000000000000004
[  113.945200][  T859] R13: 00000000686e656f R14: 0000000000499600 R15: 0000000000000000
| [  114.383807][  T865] ------------[ cut here ]------------
| [ 114.384181][ T865] WARNING: CPU: 2 PID: 865 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) 
| [  114.385381][  T865] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [  114.386690][  T865] Tainted: [W]=WARN
[  114.386939][  T865] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 114.387400][ T865] 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) 
[ 114.387733][ T865] 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
[  114.388853][  T865] RSP: 0018:ffffc9000120ef70 EFLAGS: 00010246
[  114.389252][  T865] RAX: 0000000000000000 RBX: ffff88800b46a000 RCX: 0000000000000001
[  114.389734][  T865] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[  114.390202][  T865] RBP: ffffc9000120f058 R08: 0000000000000000 R09: 0000000000000000
[  114.390739][  T865] R10: ffffc9000120f088 R11: ffffffff9b179160 R12: 1ffff92000241df2
[  114.391286][  T865] R13: 00000000000005dc R14: ffffc9000120f088 R15: ffff88800b46af08
[  114.391758][  T865] FS:  00007f3c3a8a8800(0000) GS:ffff8880995b7000(0000) knlGS:0000000000000000
[  114.392312][  T865] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  114.392720][  T865] CR2: 00000000004e73c0 CR3: 0000000006077003 CR4: 0000000000772ef0
[  114.393193][  T865] PKRU: 55555554
[  114.393446][  T865] Call Trace:
[  114.393690][  T865]  <TASK>
[ 114.393860][ T865] ? __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) 
[ 114.394258][ T865] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 114.394691][ T865] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 114.395045][ T865] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 114.395447][ T865] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 114.395776][ T865] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 114.396099][ T865] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 114.396427][ T865] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 114.396752][ T865] ? ___sys_sendmsg (net/socket.c:2670) 
[ 114.397072][ T865] ? __sys_sendmsg (net/socket.c:2700) 
[ 114.397399][ T865] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 114.397726][ T865] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 114.398130][ T865] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.398472][ T865] netif_set_mtu (net/core/dev.c:9652) 
[ 114.398791][ T865] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 114.399169][ T865] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 114.399496][ T865] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 114.399952][ T865] br_del_if (net/bridge/br_if.c:743) bridge 
[ 114.400320][ T865] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 114.400657][ T865] do_set_master (net/core/rtnetlink.c:2932) 
[ 114.400979][ T865] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 114.401322][ T865] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 114.401728][ T865] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 114.402067][ T865] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 114.402393][ T865] ? __kernel_text_address (kernel/extable.c:79) 
[ 114.402720][ T865] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.403052][ T865] ? __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) 
[ 114.403437][ T865] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 114.403831][ T865] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 114.404167][ T865] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 114.404514][ T865] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 114.404834][ T865] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 114.405196][ T865] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.405539][ T865] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 114.405858][ T865] ? __create_object (mm/kmemleak.c:771) 
[ 114.406186][ T865] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 114.406513][ T865] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 114.406849][ T865] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 114.407304][ T865] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 114.407643][ T865] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 114.407970][ T865] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 114.408312][ T865] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.408641][ T865] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.408962][ T865] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 114.409319][ T865] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 114.409645][ T865] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 114.409980][ T865] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 114.410346][ T865] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 114.410670][ T865] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.411007][ T865] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 114.411376][ T865] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 114.411699][ T865] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 114.412031][ T865] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 114.412360][ T865] ? 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) 
[ 114.412679][ T865] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 114.412999][ T865] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 114.413369][ T865] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.413696][ T865] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 114.414023][ T865] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 114.414351][ T865] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 114.414676][ T865] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 114.415012][ T865] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 114.415376][ T865] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 114.415797][ T865] ___sys_sendmsg (net/socket.c:2670) 
[ 114.416118][ T865] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 114.416450][ T865] ? __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) 
[ 114.416845][ T865] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 114.417168][ T865] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.417499][ T865] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.417824][ T865] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.418177][ T865] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 114.418506][ T865] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 114.418835][ T865] __sys_sendmsg (net/socket.c:2700) 
[ 114.419182][ T865] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 114.419610][ T865] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 114.419944][ T865] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 114.420266][ T865] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 114.420605][ T865] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  114.421001][  T865] RIP: 0033:0x7f3c3aa751e7
[ 114.421340][ T865] 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)
[  114.422471][  T865] RSP: 002b:00007ffd24a12528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  114.422956][  T865] RAX: ffffffffffffffda RBX: 00007ffd24a12c50 RCX: 00007f3c3aa751e7
[  114.423479][  T865] RDX: 0000000000000000 RSI: 00007ffd24a12590 RDI: 0000000000000005
[  114.423957][  T865] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  114.424441][  T865] R10: 00007f3c3a972ee8 R11: 0000000000000246 R12: 0000000000000003
[  114.424932][  T865] R13: 00000000686e6570 R14: 0000000000499600 R15: 0000000000000000
| [  114.883451][  T871] ------------[ cut here ]------------
| [ 114.883773][ T871] WARNING: CPU: 1 PID: 871 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) 
| [  114.884404][  T871] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [  114.885749][  T871] Tainted: [W]=WARN
[  114.885983][  T871] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 114.887856][ T871] 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) 
[ 114.888203][ T871] 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
[  114.889321][  T871] RSP: 0018:ffffc9000104ef70 EFLAGS: 00010246
[  114.889717][  T871] RAX: 0000000000000000 RBX: ffff88800cc12000 RCX: 0000000000000001
[  114.890175][  T871] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[  114.890641][  T871] RBP: ffffc9000104f058 R08: 0000000000000000 R09: 0000000000000000
[  114.891101][  T871] R10: ffffc9000104f088 R11: ffffffff9b179160 R12: 1ffff92000209df2
[  114.891569][  T871] R13: 00000000000005dc R14: ffffc9000104f088 R15: ffff88800cc12f08
[  114.892034][  T871] FS:  00007f381de1a800(0000) GS:ffff888099537000(0000) knlGS:0000000000000000
[  114.892580][  T871] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  114.892964][  T871] CR2: 00000000004e73b8 CR3: 0000000004fd7003 CR4: 0000000000772ef0
[  114.893449][  T871] PKRU: 55555554
[  114.893681][  T871] Call Trace:
[  114.893920][  T871]  <TASK>
[ 114.894075][ T871] ? __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) 
[ 114.894480][ T871] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 114.894868][ T871] ? do_set_master (net/core/rtnetlink.c:2932) 
[ 114.895200][ T871] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 114.895542][ T871] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 114.895863][ T871] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 114.896189][ T871] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 114.896531][ T871] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 114.896859][ T871] ? ___sys_sendmsg (net/socket.c:2670) 
[ 114.897188][ T871] ? __sys_sendmsg (net/socket.c:2700) 
[ 114.897544][ T871] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 114.897861][ T871] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 114.898242][ T871] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.898576][ T871] netif_set_mtu (net/core/dev.c:9652) 
[ 114.898890][ T871] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 114.899212][ T871] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 114.899460][ T871] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 114.899886][ T871] br_del_if (net/bridge/br_if.c:743) bridge 
[ 114.900225][ T871] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 114.900547][ T871] do_set_master (net/core/rtnetlink.c:2932) 
[ 114.900881][ T871] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 114.901201][ T871] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 114.901632][ T871] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 114.901945][ T871] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 114.902311][ T871] ? __kernel_text_address (kernel/extable.c:79) 
[ 114.902631][ T871] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.902941][ T871] ? __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) 
[ 114.903246][ T871] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 114.903649][ T871] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 114.903998][ T871] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 114.904309][ T871] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 114.904614][ T871] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 114.904942][ T871] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.905250][ T871] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 114.905578][ T871] ? __create_object (mm/kmemleak.c:771) 
[ 114.905890][ T871] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 114.906207][ T871] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 114.906555][ T871] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 114.906939][ T871] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 114.907256][ T871] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 114.907581][ T871] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 114.907889][ T871] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.908203][ T871] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.908526][ T871] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 114.908838][ T871] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 114.909154][ T871] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 114.909503][ T871] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 114.909816][ T871] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 114.910129][ T871] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.910461][ T871] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 114.910771][ T871] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 114.911088][ T871] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 114.911424][ T871] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 114.911728][ T871] ? 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) 
[ 114.912037][ T871] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 114.912377][ T871] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 114.912687][ T871] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.912998][ T871] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 114.913334][ T871] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 114.913643][ T871] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 114.913977][ T871] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 114.914307][ T871] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 114.914614][ T871] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 114.915016][ T871] ___sys_sendmsg (net/socket.c:2670) 
[ 114.915334][ T871] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 114.915664][ T871] ? __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) 
[ 114.916048][ T871] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 114.916379][ T871] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.916689][ T871] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 114.916999][ T871] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 114.917320][ T871] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 114.917630][ T871] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 114.917943][ T871] __sys_sendmsg (net/socket.c:2700) 
[ 114.918246][ T871] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 114.918631][ T871] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 114.918952][ T871] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 114.919259][ T871] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 114.919574][ T871] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  114.919950][  T871] RIP: 0033:0x7f381dfe71e7
[ 114.920271][ T871] 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)
[  114.921432][  T871] RSP: 002b:00007ffde2d23308 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  114.921903][  T871] RAX: ffffffffffffffda RBX: 00007ffde2d23a30 RCX: 00007f381dfe71e7
[  114.922380][  T871] RDX: 0000000000000000 RSI: 00007ffde2d23370 RDI: 0000000000000005
[  114.922867][  T871] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  114.923360][  T871] R10: 00007f381dee4ee8 R11: 0000000000000246 R12: 0000000000000003
[  114.923822][  T871] R13: 00000000686e6570 R14: 0000000000499600 R15: 0000000000000000
| [  115.255934][  T875] ------------[ cut here ]------------
| [ 115.256345][ T875] WARNING: CPU: 2 PID: 875 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) 
| [  115.256915][  T875] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [  115.258146][  T875] Tainted: [W]=WARN
[  115.258399][  T875] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 115.258771][ T875] 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) 
[ 115.259073][ T875] 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
[  115.260223][  T875] RSP: 0018:ffffc9000122f140 EFLAGS: 00010246
[  115.260624][  T875] RAX: 0000000000000000 RBX: ffff888008931000 RCX: 0000000000000001
[  115.261052][  T875] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[  115.261517][  T875] RBP: ffffc9000122f230 R08: ffff88800be65000 R09: 0000000000000000
[  115.261958][  T875] R10: ffffc9000122f5c8 R11: ffffffff9ba50668 R12: 1ffff92000245e2c
[  115.262402][  T875] R13: 00000000000005dc R14: ffffc9000122f880 R15: ffff88800eae1fe0
[  115.262872][  T875] FS:  00007f6c7b4b4800(0000) GS:ffff8880995b7000(0000) knlGS:0000000000000000
[  115.263393][  T875] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  115.263783][  T875] CR2: 00000000004e5aa8 CR3: 000000000b692005 CR4: 0000000000772ef0
[  115.264256][  T875] PKRU: 55555554
[  115.264509][  T875] Call Trace:
[  115.264733][  T875]  <TASK>
[ 115.264905][ T875] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 115.265226][ T875] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 115.265557][ T875] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 115.265855][ T875] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 115.266148][ T875] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 115.266453][ T875] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 115.266768][ T875] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 115.267066][ T875] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 115.267459][ T875] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 115.267779][ T875] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 115.268082][ T875] ? __kernel_text_address (kernel/extable.c:79) 
[ 115.268388][ T875] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 115.268721][ T875] ? __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) 
[ 115.269012][ T875] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 115.269400][ T875] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 115.269715][ T875] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 115.270008][ T875] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 115.270312][ T875] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 115.270620][ T875] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 115.270929][ T875] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 115.271226][ T875] ? __create_object (mm/kmemleak.c:771) 
[ 115.271541][ T875] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 115.271862][ T875] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 115.272152][ T875] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 115.272519][ T875] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 115.272831][ T875] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 115.273133][ T875] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 115.273444][ T875] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 115.273760][ T875] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 115.274056][ T875] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 115.274357][ T875] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 115.274652][ T875] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 115.274992][ T875] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 115.275304][ T875] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 115.275601][ T875] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 115.275909][ T875] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 115.276205][ T875] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 115.276508][ T875] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 115.276829][ T875] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 115.277122][ T875] ? 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) 
[ 115.277443][ T875] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 115.277736][ T875] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 115.278042][ T875] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 115.278353][ T875] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 115.278646][ T875] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 115.278976][ T875] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 115.279320][ T875] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 115.279618][ T875] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 115.279919][ T875] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 115.280306][ T875] ___sys_sendmsg (net/socket.c:2670) 
[ 115.280594][ T875] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 115.280885][ T875] ? __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) 
[ 115.281304][ T875] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 115.281599][ T875] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 115.281901][ T875] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 115.282211][ T875] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 115.282513][ T875] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 115.282805][ T875] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 115.283116][ T875] __sys_sendmsg (net/socket.c:2700) 
[ 115.283427][ T875] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 115.283783][ T875] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 115.284099][ T875] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 115.284404][ T875] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 115.284694][ T875] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  115.285084][  T875] RIP: 0033:0x7f6c7b6811e7
[ 115.285400][ T875] 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)
[  115.286431][  T875] RSP: 002b:00007ffe81ed9a98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  115.286862][  T875] RAX: ffffffffffffffda RBX: 00007ffe81eda1c0 RCX: 00007f6c7b6811e7
[  115.287335][  T875] RDX: 0000000000000000 RSI: 00007ffe81ed9b00 RDI: 0000000000000005
[  115.287776][  T875] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[  115.288224][  T875] R10: 00007f6c7b57eee8 R11: 0000000000000246 R12: 0000000000000004
[  115.288664][  T875] R13: 00000000686e6571 R14: 0000000000499600 R15: 0000000000000000
| [  116.500526][  T889] ------------[ cut here ]------------
| [ 116.501095][ T889] WARNING: CPU: 2 PID: 889 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) 
| [  116.502101][  T889] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [  116.504448][  T889] Tainted: [W]=WARN
[  116.504950][  T889] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 116.505631][ T889] 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) 
[ 116.506173][ T889] 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
[  116.508018][  T889] RSP: 0018:ffffc900012af140 EFLAGS: 00010246
[  116.508696][  T889] RAX: 0000000000000000 RBX: ffff88800aa9c000 RCX: 0000000000000001
[  116.509464][  T889] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[  116.510228][  T889] RBP: ffffc900012af230 R08: ffff88800aad0800 R09: 0000000000000000
[  116.510978][  T889] R10: ffffc900012af5c8 R11: ffffffff9ba50668 R12: 1ffff92000255e2c
[  116.511744][  T889] R13: 00000000000005dc R14: ffffc900012af880 R15: ffff88800f25c060
[  116.512494][  T889] FS:  00007fcd774e0800(0000) GS:ffff8880995b7000(0000) knlGS:0000000000000000
[  116.513342][  T889] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  116.513929][  T889] CR2: 00000000004e5ab8 CR3: 0000000004df6004 CR4: 0000000000772ef0
[  116.514677][  T889] PKRU: 55555554
[  116.515083][  T889] Call Trace:
[  116.515492][  T889]  <TASK>
[ 116.515762][ T889] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 116.516255][ T889] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 116.516759][ T889] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 116.517295][ T889] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 116.517828][ T889] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 116.518361][ T889] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 116.518901][ T889] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 116.519426][ T889] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 116.520047][ T889] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 116.520578][ T889] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 116.521084][ T889] ? __kernel_text_address (kernel/extable.c:79) 
[ 116.521623][ T889] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 116.522139][ T889] ? __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) 
[ 116.522669][ T889] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 116.523267][ T889] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 116.523800][ T889] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 116.524334][ T889] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 116.524869][ T889] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 116.525403][ T889] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 116.525907][ T889] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 116.526430][ T889] ? __create_object (mm/kmemleak.c:771) 
[ 116.526948][ T889] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 116.527515][ T889] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 116.528018][ T889] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 116.528668][ T889] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 116.529187][ T889] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 116.529719][ T889] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 116.530188][ T889] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 116.530734][ T889] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 116.531215][ T889] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 116.531719][ T889] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 116.532227][ T889] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 116.532735][ T889] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 116.533249][ T889] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 116.533775][ T889] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 116.534316][ T889] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 116.534823][ T889] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 116.535244][ T889] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 116.535601][ T889] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 116.535902][ T889] ? 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) 
[ 116.536208][ T889] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 116.536565][ T889] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 116.536881][ T889] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 116.537194][ T889] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 116.537516][ T889] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 116.537823][ T889] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 116.538139][ T889] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 116.538464][ T889] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 116.538759][ T889] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 116.539142][ T889] ___sys_sendmsg (net/socket.c:2670) 
[ 116.539460][ T889] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 116.539760][ T889] ? __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) 
[ 116.540126][ T889] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 116.540486][ T889] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 116.540797][ T889] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 116.541100][ T889] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 116.541400][ T889] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 116.541718][ T889] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 116.542017][ T889] __sys_sendmsg (net/socket.c:2700) 
[ 116.542317][ T889] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 116.542695][ T889] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 116.542995][ T889] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 116.543323][ T889] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 116.543650][ T889] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  116.544024][  T889] RIP: 0033:0x7fcd776ad1e7
[ 116.544387][ T889] 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)
[  116.545490][  T889] RSP: 002b:00007fffcd92ca88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  116.545970][  T889] RAX: ffffffffffffffda RBX: 00007fffcd92d1b0 RCX: 00007fcd776ad1e7
[  116.546434][  T889] RDX: 0000000000000000 RSI: 00007fffcd92caf0 RDI: 0000000000000005
[  116.546907][  T889] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[  116.547372][  T889] R10: 00007fcd775aaee8 R11: 0000000000000246 R12: 0000000000000004
[  116.547847][  T889] R13: 00000000686e6572 R14: 0000000000499600 R15: 0000000000000000
| [  117.836502][  T901] ------------[ cut here ]------------
| [ 117.836847][ T901] WARNING: CPU: 0 PID: 901 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) 
| [  117.838966][  T901] Modules linked in: sch_tbf sch_ets bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [  117.840411][  T901] Tainted: [W]=WARN
[  117.840628][  T901] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 117.841019][ T901] 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) 
[ 117.841332][ T901] 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
[  117.842340][  T901] RSP: 0018:ffffc9000125f140 EFLAGS: 00010246
[  117.842702][  T901] RAX: 0000000000000000 RBX: ffff888008b6c000 RCX: 0000000000000001
[  117.843146][  T901] RDX: 0000000000000000 RSI: ffffffff9ac9b939 RDI: ffffffff9a4555e0
[  117.843578][  T901] RBP: ffffc9000125f230 R08: ffff888008c40800 R09: 0000000000000000
[  117.844027][  T901] R10: ffffc9000125f5c8 R11: ffffffff9ba50668 R12: 1ffff9200024be2c
[  117.844477][  T901] R13: 00000000000005dc R14: ffffc9000125f880 R15: ffff88800f5c7be0
[  117.844929][  T901] FS:  00007f06bbc57800(0000) GS:ffff8880994b7000(0000) knlGS:0000000000000000
[  117.845475][  T901] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  117.845857][  T901] CR2: 00000000004e5aa0 CR3: 0000000008bc9004 CR4: 0000000000772ef0
[  117.846307][  T901] PKRU: 55555554
[  117.846514][  T901] Call Trace:
[  117.846722][  T901]  <TASK>
[ 117.846865][ T901] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 117.847177][ T901] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 117.847469][ T901] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 117.847771][ T901] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 117.848050][ T901] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 117.848368][ T901] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 117.848654][ T901] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 117.848938][ T901] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 117.849330][ T901] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 117.849617][ T901] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 117.849894][ T901] ? __kernel_text_address (kernel/extable.c:79) 
[ 117.850192][ T901] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 117.850496][ T901] ? __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) 
[ 117.850790][ T901] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 117.851146][ T901] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 117.851451][ T901] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 117.851733][ T901] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 117.852025][ T901] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 117.852357][ T901] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 117.852643][ T901] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 117.852921][ T901] ? __create_object (mm/kmemleak.c:771) 
[ 117.853208][ T901] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 117.853509][ T901] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 117.853785][ T901] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 117.854132][ T901] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 117.854438][ T901] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 117.854728][ T901] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 117.855025][ T901] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 117.855337][ T901] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 117.855618][ T901] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 117.855892][ T901] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 117.856170][ T901] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 117.856470][ T901] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 117.856749][ T901] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 117.857032][ T901] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 117.857327][ T901] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 117.857624][ T901] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 117.857902][ T901] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 117.858200][ T901] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 117.858500][ T901] ? 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) 
[ 117.858788][ T901] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 117.859074][ T901] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 117.859366][ T901] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 117.859662][ T901] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 117.859944][ T901] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 117.860221][ T901] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 117.860540][ T901] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 117.860832][ T901] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 117.861117][ T901] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 117.861502][ T901] ___sys_sendmsg (net/socket.c:2670) 
[ 117.861777][ T901] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 117.862052][ T901] ? __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) 
[ 117.862407][ T901] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 117.862715][ T901] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 117.862997][ T901] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 117.863304][ T901] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 117.863598][ T901] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 117.863874][ T901] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 117.864156][ T901] __sys_sendmsg (net/socket.c:2700) 
[ 117.864472][ T901] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 117.864843][ T901] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 117.865150][ T901] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 117.865459][ T901] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 117.865752][ T901] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  117.866095][  T901] RIP: 0033:0x7f06bbe241e7
[ 117.866396][ T901] 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)
[  117.867423][  T901] RSP: 002b:00007ffe4145cb68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  117.867855][  T901] RAX: ffffffffffffffda RBX: 00007ffe4145d290 RCX: 00007f06bbe241e7
[  117.868309][  T901] RDX: 0000000000000000 RSI: 00007ffe4145cbd0 RDI: 0000000000000005
[  117.868742][  T901] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[  117.869160][  T901] R10: 00007f06bbd21ee8 R11: 0000000000000246 R12: 0000000000000004


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_del_if
netif_set_mtu_ext:rtnl_newlink:rtnetlink_rcv_msg:netlink_rcv_skb:netlink_unicast
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if