======================================
| 0
| xx__-> [   17.437163][  T302] ------------[ cut here ]------------
| [ 17.438088][ T302] WARNING: CPU: 2 PID: 302 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) 
| [   17.438674][  T302] Modules linked in: vrf veth
[   17.439535][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.439900][ T302] 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) 
[ 17.440198][ T302] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   17.441199][  T302] RSP: 0018:ffffc90000627140 EFLAGS: 00010246
[   17.441590][  T302] RAX: 0000000000000000 RBX: ffff888007e09000 RCX: 0000000000000001
[   17.442019][  T302] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   17.442468][  T302] RBP: ffffc90000627230 R08: ffff888008d02000 R09: 0000000000000000
[   17.442897][  T302] R10: ffffc900006275c8 R11: ffffffff9b050668 R12: 1ffff920000c4e2c
[   17.443331][  T302] R13: 0000000000002710 R14: ffffc90000627880 R15: ffff8880051b6a60
[   17.443760][  T302] FS:  00007f0a22166800(0000) GS:ffff888099fb7000(0000) knlGS:0000000000000000
[   17.444262][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.444626][  T302] CR2: 00000000004e5aa0 CR3: 0000000009137002 CR4: 0000000000772ef0
[   17.445053][  T302] PKRU: 55555554
[   17.445284][  T302] Call Trace:
[   17.445504][  T302]  <TASK>
[ 17.445659][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.445954][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 17.446238][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.446541][ T302] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 17.447017][ T302] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 17.447322][ T302] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 17.447617][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 17.447916][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 17.448287][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 17.448573][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 17.448858][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 17.449149][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.449449][ T302] ? __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) 
[ 17.449738][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 17.450086][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.450385][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.450670][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 17.450956][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 17.451250][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.451549][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 17.451830][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 17.452123][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 17.452420][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 17.452709][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.453060][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 17.453369][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 17.453662][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.453949][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.454238][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.454539][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 17.454825][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.455121][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.455414][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 17.455704][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.455996][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.456311][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 17.456596][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.456884][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 17.457182][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 17.457478][ T302] ? 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) 
[ 17.457767][ T302] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 17.458059][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 17.458353][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.458645][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 17.458936][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 17.459221][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 17.459524][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 17.459813][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 17.460102][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 17.460482][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 17.460780][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 17.461063][ T302] ? __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) 
[ 17.461435][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 17.461724][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.462015][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.462315][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.462602][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 17.462894][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.463190][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 17.463481][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 17.463834][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 17.464130][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.464427][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 17.464712][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   17.465070][  T302] RIP: 0033:0x7f0a223331e7
[ 17.465385][ T302] 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)
[   17.466387][  T302] RSP: 002b:00007ffda3f97818 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.466820][  T302] RAX: ffffffffffffffda RBX: 00007ffda3f97f40 RCX: 00007f0a223331e7
[   17.467258][  T302] RDX: 0000000000000000 RSI: 00007ffda3f97880 RDI: 0000000000000005
[   17.467683][  T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   17.468111][  T302] R10: 00007f0a22230ee8 R11: 0000000000000246 R12: 0000000000000004
[   17.468545][  T302] R13: 00000000686e3e4e R14: 0000000000499600 R15: 0000000000000000
| [   19.959400][  T344] ------------[ cut here ]------------
| [ 19.959758][ T344] WARNING: CPU: 2 PID: 344 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.960348][  T344] Modules linked in: 8021q vrf veth
| [   19.961772][  T344] Tainted: [W]=WARN
[   19.962001][  T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.962370][ T344] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.962672][ T344] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.963683][  T344] RSP: 0018:ffffc90000637140 EFLAGS: 00010246
[   19.964048][  T344] RAX: 0000000000000000 RBX: ffff88801289c000 RCX: 0000000000000001
[   19.964487][  T344] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   19.964910][  T344] RBP: ffffc90000637230 R08: ffff888005050800 R09: 0000000000000000
[   19.965352][  T344] R10: ffffc900006375c8 R11: ffffffff9b050668 R12: 1ffff920000c6e2c
[   19.965778][  T344] R13: 0000000000002710 R14: ffffc90000637880 R15: ffff888005f943e0
[   19.966206][  T344] FS:  00007f7f9e290800(0000) GS:ffff888099fb7000(0000) knlGS:0000000000000000
[   19.966708][  T344] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.967074][  T344] CR2: 00000000004e5ab8 CR3: 00000000029ec001 CR4: 0000000000772ef0
[   19.967517][  T344] PKRU: 55555554
[   19.967738][  T344] Call Trace:
[   19.967958][  T344]  <TASK>
[ 19.968111][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.968416][ T344] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.968703][ T344] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.968995][ T344] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 19.969304][ T344] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 19.969596][ T344] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 19.969887][ T344] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 19.970190][ T344] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.970564][ T344] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.970855][ T344] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.971144][ T344] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.971469][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.971761][ T344] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.972054][ T344] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.972428][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.972723][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.973011][ T344] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.973321][ T344] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.973615][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.973902][ T344] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.974204][ T344] ? __create_object (mm/kmemleak.c:771) 
[ 19.974506][ T344] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.974799][ T344] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.975085][ T344] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.975457][ T344] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.975750][ T344] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.976044][ T344] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.976341][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.976633][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.976918][ T344] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.977204][ T344] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.977517][ T344] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.977809][ T344] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.978096][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.978405][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.978704][ T344] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.978994][ T344] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.979306][ T344] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.979605][ T344] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.979891][ T344] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.980180][ T344] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.980484][ T344] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.980775][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.981069][ T344] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.981400][ T344] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.981701][ T344] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.981995][ T344] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.982296][ T344] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.982581][ T344] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.982946][ T344] ___sys_sendmsg (net/socket.c:2670) 
[ 19.983232][ T344] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.983551][ T344] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.983920][ T344] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.984212][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.984515][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.984808][ T344] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.985096][ T344] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.985395][ T344] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.985691][ T344] __sys_sendmsg (net/socket.c:2700) 
[ 19.985983][ T344] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.986346][ T344] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.986648][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.986933][ T344] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.987223][ T344] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.987586][  T344] RIP: 0033:0x7f7f9e45d1e7
[ 19.987885][ T344] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.988890][  T344] RSP: 002b:00007ffedaa17cb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.989326][  T344] RAX: ffffffffffffffda RBX: 00007ffedaa183e0 RCX: 00007f7f9e45d1e7
[   19.989749][  T344] RDX: 0000000000000000 RSI: 00007ffedaa17d20 RDI: 0000000000000005
[   19.990221][  T344] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   19.990661][  T344] R10: 00007f7f9e35aee8 R11: 0000000000000246 R12: 0000000000000004
[   19.991091][  T344] R13: 00000000686e3e50 R14: 0000000000499600 R15: 0000000000000000
| [   23.265654][  T402] ------------[ cut here ]------------
| [ 23.265963][ T402] WARNING: CPU: 0 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) 
| [   23.266526][  T402] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   23.267604][  T402] Tainted: [W]=WARN
[   23.267813][  T402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.268161][ 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) 
[ 23.268460][ T402] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.269457][  T402] RSP: 0018:ffffc90000797140 EFLAGS: 00010246
[   23.269807][  T402] RAX: 0000000000000000 RBX: ffff888007939000 RCX: 0000000000000001
[   23.270223][  T402] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   23.270648][  T402] RBP: ffffc90000797230 R08: ffff888009048800 R09: 0000000000000000
[   23.271062][  T402] R10: ffffc900007975c8 R11: ffffffff9b050668 R12: 1ffff920000f2e2c
[   23.271493][  T402] R13: 0000000000002710 R14: ffffc90000797880 R15: ffff888005f94ae0
[   23.271913][  T402] FS:  00007f3abfb6e800(0000) GS:ffff888099eb7000(0000) knlGS:0000000000000000
[   23.272407][  T402] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.272753][  T402] CR2: 00000000004e5aa8 CR3: 0000000012b41001 CR4: 0000000000772ef0
[   23.273268][  T402] PKRU: 55555554
[   23.273478][  T402] Call Trace:
[   23.273685][  T402]  <TASK>
[ 23.273825][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.274105][ T402] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.274390][ T402] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.274668][ T402] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 23.274943][ T402] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 23.275223][ T402] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 23.275510][ T402] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.275860][ T402] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.276137][ T402] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.276419][ T402] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.276696][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.276974][ 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) 
[ 23.277261][ T402] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.277601][ T402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.277875][ T402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.278153][ T402] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.278437][ T402] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.278714][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.278987][ T402] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.279265][ T402] ? __create_object (mm/kmemleak.c:771) 
[ 23.279545][ T402] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.279825][ T402] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.280097][ T402] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.280447][ T402] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.280732][ T402] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.281009][ T402] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.281300][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.281588][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.281864][ T402] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.282134][ T402] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.282418][ T402] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.282695][ T402] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.282969][ T402] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.283254][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.283537][ T402] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.283809][ T402] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.284082][ T402] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.284375][ T402] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.284673][ 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) 
[ 23.284949][ T402] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.285225][ T402] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.285510][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.285790][ T402] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.286066][ T402] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.286348][ T402] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.286636][ T402] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.286912][ T402] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.287186][ T402] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.287549][ T402] ___sys_sendmsg (net/socket.c:2670) 
[ 23.287819][ T402] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.288090][ 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) 
[ 23.288441][ T402] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.288726][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.289006][ T402] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.289296][ T402] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.289570][ 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) 
[ 23.289841][ T402] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.290121][ T402] __sys_sendmsg (net/socket.c:2700) 
[ 23.290402][ T402] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.290749][ T402] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.291034][ T402] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.291328][ T402] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.291602][ T402] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.291938][  T402] RIP: 0033:0x7f3abfd3b1e7
[ 23.292219][ 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)
[   23.293208][  T402] RSP: 002b:00007ffe51b34418 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.293645][  T402] RAX: ffffffffffffffda RBX: 00007ffe51b34b40 RCX: 00007f3abfd3b1e7
[   23.294052][  T402] RDX: 0000000000000000 RSI: 00007ffe51b34480 RDI: 0000000000000005
[   23.294474][  T402] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   23.294883][  T402] R10: 00007f3abfc38ee8 R11: 0000000000000246 R12: 0000000000000004
[   23.295303][  T402] R13: 00000000686e3e53 R14: 0000000000499600 R15: 0000000000000000
| [   23.774136][  T414] ------------[ cut here ]------------
| [ 23.774638][ T414] WARNING: CPU: 1 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) 
| [   23.775427][  T414] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   23.776865][  T414] Tainted: [W]=WARN
[   23.777099][  T414] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.777669][ 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) 
[ 23.777992][ T414] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.779230][  T414] RSP: 0018:ffffc90000656ef0 EFLAGS: 00010246
[   23.779683][  T414] RAX: 0000000000000000 RBX: ffff8880020ea000 RCX: 0000000000000001
[   23.780148][  T414] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   23.780612][  T414] RBP: ffffc90000656fe0 R08: 0000000000000000 R09: 0000000000000000
[   23.781075][  T414] R10: ffffc90000657010 R11: ffffffff9b0a8918 R12: 1ffff920000cade2
[   23.781553][  T414] R13: 0000000000002710 R14: ffffc90000657010 R15: ffff8880020eaf08
[   23.782035][  T414] FS:  00007f1250f98800(0000) GS:ffff888099f37000(0000) knlGS:0000000000000000
[   23.782591][  T414] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.782977][  T414] CR2: 00000000004e5410 CR3: 0000000005d6a006 CR4: 0000000000772ef0
[   23.783444][  T414] PKRU: 55555554
[   23.783672][  T414] Call Trace:
[   23.783900][  T414]  <TASK>
[ 23.784060][ T414] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.784385][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.784700][ T414] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 23.785006][ T414] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 23.785398][ T414] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 23.785709][ T414] netif_set_mtu (net/core/dev.c:9652) 
[ 23.786015][ T414] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.786348][ T414] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 23.786783][ T414] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.787014][ T414] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 23.787446][ T414] br_add_if (net/bridge/br_if.c:697) bridge 
[ 23.787799][ T414] do_set_master (net/core/rtnetlink.c:2948) 
[ 23.788114][ T414] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 23.788435][ T414] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 23.788828][ T414] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.789135][ T414] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 23.789449][ T414] ? __kernel_text_address (kernel/extable.c:79) 
[ 23.789758][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.790066][ 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) 
[ 23.790382][ T414] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 23.790762][ T414] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.791071][ T414] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.791404][ T414] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 23.791711][ T414] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 23.792014][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.792328][ T414] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.792635][ T414] ? __create_object (mm/kmemleak.c:771) 
[ 23.792941][ T414] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 23.793258][ T414] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 23.793569][ T414] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 23.793947][ T414] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 23.794270][ T414] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.794583][ T414] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.794924][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.795258][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.795562][ T414] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.795872][ T414] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.796181][ T414] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.796512][ T414] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.796828][ T414] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.797135][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.797473][ T414] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.797782][ T414] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.798089][ T414] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.798422][ T414] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.798736][ 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) 
[ 23.799044][ T414] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 23.799367][ T414] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.799676][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.799987][ T414] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.800306][ T414] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.800620][ T414] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.800943][ T414] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.801283][ T414] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.801601][ T414] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.801994][ T414] ___sys_sendmsg (net/socket.c:2670) 
[ 23.802322][ T414] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 23.802629][ 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) 
[ 23.803014][ T414] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.803334][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.803644][ T414] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.803953][ T414] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 23.804277][ 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) 
[ 23.804594][ T414] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.804908][ T414] __sys_sendmsg (net/socket.c:2700) 
[ 23.805212][ T414] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 23.805628][ T414] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.805950][ T414] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.806269][ T414] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.806578][ T414] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.806958][  T414] RIP: 0033:0x7f12511651e7
[ 23.807285][ 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)
[   23.808403][  T414] RSP: 002b:00007ffd7f398828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.808875][  T414] RAX: ffffffffffffffda RBX: 00007ffd7f398f50 RCX: 00007f12511651e7
[   23.809383][  T414] RDX: 0000000000000000 RSI: 00007ffd7f398890 RDI: 0000000000000005
[   23.809854][  T414] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.810323][  T414] R10: 00000000347de910 R11: 0000000000000246 R12: 0000000000000004
[   23.810783][  T414] R13: 00000000686e3e54 R14: 0000000000499600 R15: 0000000000000000
| [   24.418457][  T431] ------------[ cut here ]------------
| [ 24.418790][ T431] WARNING: CPU: 3 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) 
| [   24.419558][  T431] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   24.420748][  T431] Tainted: [W]=WARN
[   24.420981][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.421398][ 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) 
[ 24.421716][ T431] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   24.422821][  T431] RSP: 0018:ffffc90000566ef0 EFLAGS: 00010246
[   24.423207][  T431] RAX: 0000000000000000 RBX: ffff8880050b2000 RCX: 0000000000000001
[   24.423677][  T431] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   24.424139][  T431] RBP: ffffc90000566fe0 R08: 0000000000000000 R09: 0000000000000000
[   24.424603][  T431] R10: ffffc90000567010 R11: ffffffff9b0a8918 R12: 1ffff920000acde2
[   24.425064][  T431] R13: 0000000000002710 R14: ffffc90000567010 R15: ffff8880050b2f08
[   24.425543][  T431] FS:  00007f9d549f6800(0000) GS:ffff88809a037000(0000) knlGS:0000000000000000
[   24.426076][  T431] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.426476][  T431] CR2: 00000000004e5418 CR3: 00000000161b8004 CR4: 0000000000772ef0
[   24.426990][  T431] PKRU: 55555554
[   24.427219][  T431] Call Trace:
[   24.427455][  T431]  <TASK>
[ 24.427618][ T431] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.427924][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.428235][ T431] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 24.428579][ T431] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 24.428962][ T431] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 24.429280][ T431] netif_set_mtu (net/core/dev.c:9652) 
[ 24.429587][ T431] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.429913][ T431] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 24.430355][ T431] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.430620][ T431] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 24.431045][ T431] br_add_if (net/bridge/br_if.c:697) bridge 
[ 24.431442][ T431] do_set_master (net/core/rtnetlink.c:2948) 
[ 24.431756][ T431] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 24.432071][ T431] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 24.432477][ T431] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 24.432784][ T431] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 24.433087][ T431] ? __kernel_text_address (kernel/extable.c:79) 
[ 24.433407][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.433718][ 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) 
[ 24.434026][ T431] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 24.434416][ T431] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.434735][ T431] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.435040][ T431] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 24.435357][ T431] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 24.435668][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.435977][ T431] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.436286][ T431] ? __create_object (mm/kmemleak.c:771) 
[ 24.436597][ T431] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 24.436903][ T431] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 24.437210][ T431] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 24.437601][ T431] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 24.437921][ T431] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.438261][ T431] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.438569][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.438883][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.439196][ T431] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.439509][ T431] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.439820][ T431] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.440125][ T431] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.440445][ T431] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.440755][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.441063][ T431] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.441398][ T431] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.441706][ T431] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.442037][ T431] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.442355][ 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) 
[ 24.442932][ T431] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 24.443239][ T431] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.443551][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.443861][ T431] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.444171][ T431] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.444712][ T431] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.445253][ T431] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.445784][ T431] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.446090][ T431] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.446489][ T431] ___sys_sendmsg (net/socket.c:2670) 
[ 24.447015][ T431] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.447329][ 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) 
[ 24.447717][ T431] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.448026][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.448789][ T431] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.449102][ T431] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.449415][ 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) 
[ 24.449722][ T431] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.450036][ T431] __sys_sendmsg (net/socket.c:2700) 
[ 24.450351][ T431] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.450731][ T431] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.451048][ T431] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.451370][ T431] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.451679][ T431] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.452057][  T431] RIP: 0033:0x7f9d54bc31e7
[ 24.452382][ 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)
[   24.453482][  T431] RSP: 002b:00007fff94d565c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.453947][  T431] RAX: ffffffffffffffda RBX: 00007fff94d56cf0 RCX: 00007f9d54bc31e7
[   24.454413][  T431] RDX: 0000000000000000 RSI: 00007fff94d56630 RDI: 0000000000000005
[   24.455097][  T431] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   24.455557][  T431] R10: 0000000036347910 R11: 0000000000000246 R12: 0000000000000004
[   24.456014][  T431] R13: 00000000686e3e55 R14: 0000000000499600 R15: 0000000000000000
| [   25.066880][  T449] ------------[ cut here ]------------
| [ 25.067201][ T449] WARNING: CPU: 1 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) 
| [   25.067767][  T449] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   25.068884][  T449] Tainted: [W]=WARN
[   25.069101][  T449] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.070581][ 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) 
[ 25.070880][ T449] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   25.071917][  T449] RSP: 0018:ffffc90000587140 EFLAGS: 00010246
[   25.072295][  T449] RAX: 0000000000000000 RBX: ffff888008c2c000 RCX: 0000000000000001
[   25.072760][  T449] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   25.073185][  T449] RBP: ffffc90000587230 R08: ffff888012712000 R09: 0000000000000000
[   25.073632][  T449] R10: ffffc900005875c8 R11: ffffffff9b050668 R12: 1ffff920000b0e2c
[   25.074060][  T449] R13: 0000000000002710 R14: ffffc90000587880 R15: ffff8880113eb860
[   25.074487][  T449] FS:  00007fa7d597f800(0000) GS:ffff888099f37000(0000) knlGS:0000000000000000
[   25.074981][  T449] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.075344][  T449] CR2: 00000000004e5ab0 CR3: 0000000012b4f002 CR4: 0000000000772ef0
[   25.075763][  T449] PKRU: 55555554
[   25.075968][  T449] Call Trace:
[   25.076180][  T449]  <TASK>
[ 25.076341][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.076627][ T449] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.076901][ T449] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.077179][ T449] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 25.077463][ T449] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 25.077748][ T449] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 25.078026][ T449] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 25.078317][ T449] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 25.078667][ T449] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 25.078942][ T449] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 25.079214][ T449] ? __kernel_text_address (kernel/extable.c:79) 
[ 25.079501][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.079791][ 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) 
[ 25.080066][ T449] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 25.080419][ T449] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.080697][ T449] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.080968][ T449] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 25.081249][ T449] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 25.081539][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.081820][ T449] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.082098][ T449] ? __create_object (mm/kmemleak.c:771) 
[ 25.082384][ T449] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 25.082660][ T449] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 25.082933][ T449] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 25.083281][ T449] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 25.083563][ T449] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.083854][ T449] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.084125][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.084419][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.084698][ T449] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.084969][ T449] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.085252][ T449] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.085525][ T449] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.085805][ T449] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.086086][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.086374][ T449] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.086659][ T449] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.086941][ T449] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.087235][ T449] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.087524][ 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) 
[ 25.087820][ T449] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 25.088107][ T449] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.088405][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.088700][ T449] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.088991][ T449] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.089293][ T449] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.089590][ T449] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.089886][ T449] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.090182][ T449] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.090564][ T449] ___sys_sendmsg (net/socket.c:2670) 
[ 25.090853][ T449] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 25.091144][ 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) 
[ 25.091530][ T449] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.091845][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.092123][ T449] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.092428][ T449] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.092704][ 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) 
[ 25.092978][ T449] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.093275][ T449] __sys_sendmsg (net/socket.c:2700) 
[ 25.093547][ T449] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 25.093888][ T449] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.094177][ T449] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.094467][ T449] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.094744][ T449] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.095082][  T449] RIP: 0033:0x7fa7d5b4c1e7
[ 25.095374][ 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)
[   25.096367][  T449] RSP: 002b:00007ffd746242b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.096789][  T449] RAX: ffffffffffffffda RBX: 00007ffd746249e0 RCX: 00007fa7d5b4c1e7
[   25.097202][  T449] RDX: 0000000000000000 RSI: 00007ffd74624320 RDI: 0000000000000005
[   25.097623][  T449] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   25.098033][  T449] R10: 00007fa7d5a49ee8 R11: 0000000000000246 R12: 0000000000000004
[   25.098457][  T449] R13: 00000000686e3e55 R14: 0000000000499600 R15: 0000000000000000
| [   25.547158][  T461] ------------[ cut here ]------------
| [ 25.547480][ T461] WARNING: CPU: 3 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) 
| [   25.548084][  T461] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   25.549271][  T461] Tainted: [W]=WARN
[   25.549510][  T461] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.549896][ 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) 
[ 25.550216][ T461] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   25.551854][  T461] RSP: 0018:ffffc90000776ef0 EFLAGS: 00010246
[   25.552251][  T461] RAX: 0000000000000000 RBX: ffff8880020ea000 RCX: 0000000000000001
[   25.552712][  T461] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   25.553169][  T461] RBP: ffffc90000776fe0 R08: 0000000000000000 R09: 0000000000000000
[   25.553636][  T461] R10: ffffc90000777010 R11: ffffffff9b0a8918 R12: 1ffff920000eede2
[   25.554101][  T461] R13: 0000000000002710 R14: ffffc90000777010 R15: ffff8880020eaf08
[   25.554572][  T461] FS:  00007f2217fd4800(0000) GS:ffff88809a037000(0000) knlGS:0000000000000000
[   25.555107][  T461] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.555502][  T461] CR2: 00000000004e5410 CR3: 0000000015a1d003 CR4: 0000000000772ef0
[   25.555968][  T461] PKRU: 55555554
[   25.556197][  T461] Call Trace:
[   25.556435][  T461]  <TASK>
[ 25.556598][ T461] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.556916][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.557230][ T461] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 25.557544][ T461] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 25.557928][ T461] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 25.558250][ T461] netif_set_mtu (net/core/dev.c:9652) 
[ 25.558560][ T461] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.558884][ T461] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 25.559335][ T461] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.559569][ T461] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 25.560000][ T461] br_add_if (net/bridge/br_if.c:697) bridge 
[ 25.560366][ T461] do_set_master (net/core/rtnetlink.c:2948) 
[ 25.560694][ T461] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 25.561006][ T461] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 25.561417][ T461] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 25.561729][ T461] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 25.562034][ T461] ? __kernel_text_address (kernel/extable.c:79) 
[ 25.562353][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.562673][ 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) 
[ 25.562981][ T461] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 25.563370][ T461] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.563680][ T461] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.563987][ T461] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 25.564317][ T461] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 25.564629][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.564941][ T461] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.565254][ T461] ? __create_object (mm/kmemleak.c:771) 
[ 25.565564][ T461] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 25.565871][ T461] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 25.566177][ T461] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 25.566564][ T461] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 25.566879][ T461] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.567195][ T461] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.567508][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.567831][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.568138][ T461] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.568448][ T461] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.568770][ T461] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.569075][ T461] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.569394][ T461] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.569724][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.570051][ T461] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.570378][ T461] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.570700][ T461] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.571035][ T461] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.571375][ 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) 
[ 25.571703][ T461] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 25.572039][ T461] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.572371][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.572701][ T461] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.573028][ T461] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.573361][ T461] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.573695][ T461] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.574023][ T461] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.574351][ T461] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.574744][ T461] ___sys_sendmsg (net/socket.c:2670) 
[ 25.575049][ T461] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 25.575365][ 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) 
[ 25.575753][ T461] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.576063][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.576383][ T461] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.576707][ T461] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.577015][ 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) 
[ 25.577332][ T461] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.577652][ T461] __sys_sendmsg (net/socket.c:2700) 
[ 25.577956][ T461] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 25.578357][ T461] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.578681][ T461] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.578998][ T461] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.579320][ T461] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.579701][  T461] RIP: 0033:0x7f22181a11e7
[ 25.580025][ 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)
[   25.581136][  T461] RSP: 002b:00007ffcb52f3c88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.581645][  T461] RAX: ffffffffffffffda RBX: 00007ffcb52f43b0 RCX: 00007f22181a11e7
[   25.582119][  T461] RDX: 0000000000000000 RSI: 00007ffcb52f3cf0 RDI: 0000000000000005
[   25.582583][  T461] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   25.583063][  T461] R10: 0000000024bba910 R11: 0000000000000246 R12: 0000000000000004
[   25.583530][  T461] R13: 00000000686e3e56 R14: 0000000000499600 R15: 0000000000000000
| [   26.183510][  T478] ------------[ cut here ]------------
| [ 26.183841][ T478] WARNING: CPU: 2 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) 
| [   26.184474][  T478] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   26.187101][  T478] Tainted: [W]=WARN
[   26.187363][  T478] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.187767][ 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) 
[ 26.188107][ T478] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   26.189218][  T478] RSP: 0018:ffffc900007e6ef0 EFLAGS: 00010246
[   26.189635][  T478] RAX: 0000000000000000 RBX: ffff8880050b2000 RCX: 0000000000000001
[   26.190108][  T478] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   26.190587][  T478] RBP: ffffc900007e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   26.191059][  T478] R10: ffffc900007e7010 R11: ffffffff9b0a8918 R12: 1ffff920000fcde2
[   26.191554][  T478] R13: 0000000000002710 R14: ffffc900007e7010 R15: ffff8880050b2f08
[   26.192031][  T478] FS:  00007fca12316800(0000) GS:ffff888099fb7000(0000) knlGS:0000000000000000
[   26.192586][  T478] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.192984][  T478] CR2: 00000000004e5418 CR3: 00000000090e4004 CR4: 0000000000772ef0
[   26.193463][  T478] PKRU: 55555554
[   26.193706][  T478] Call Trace:
[   26.193951][  T478]  <TASK>
[ 26.194124][ T478] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.194458][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.194789][ T478] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 26.195115][ T478] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 26.195517][ T478] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 26.195842][ T478] netif_set_mtu (net/core/dev.c:9652) 
[ 26.196163][ T478] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.196509][ T478] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 26.196952][ T478] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.197201][ T478] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 26.197647][ T478] br_add_if (net/bridge/br_if.c:697) bridge 
[ 26.198077][ T478] do_set_master (net/core/rtnetlink.c:2948) 
[ 26.198430][ T478] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 26.198773][ T478] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 26.199193][ T478] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 26.199542][ T478] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 26.199880][ T478] ? __kernel_text_address (kernel/extable.c:79) 
[ 26.200229][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.200594][ 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) 
[ 26.200937][ T478] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 26.201381][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.201724][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.202061][ T478] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 26.202409][ T478] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 26.202749][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.203088][ T478] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.203430][ T478] ? __create_object (mm/kmemleak.c:771) 
[ 26.203777][ T478] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 26.204115][ T478] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 26.204456][ T478] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 26.204880][ T478] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 26.205236][ T478] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.205598][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.205937][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.206286][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.206625][ T478] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.206960][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.207533][ T478] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.207869][ T478] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.208209][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.208559][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.208900][ T478] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.209235][ T478] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.209579][ T478] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.209926][ T478] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.210265][ 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) 
[ 26.210603][ T478] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 26.210937][ T478] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.211518][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.211881][ T478] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.212222][ T478] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.212594][ T478] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.213167][ T478] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.213514][ T478] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.213851][ T478] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.214285][ T478] ___sys_sendmsg (net/socket.c:2670) 
[ 26.214621][ T478] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.214956][ 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) 
[ 26.215382][ T478] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.215945][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.216304][ T478] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.216648][ T478] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.216985][ 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) 
[ 26.217328][ T478] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.217674][ T478] __sys_sendmsg (net/socket.c:2700) 
[ 26.218007][ T478] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.218429][ T478] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.219016][ T478] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.219580][ T478] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.219901][ T478] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.220302][  T478] RIP: 0033:0x7fca124e31e7
[ 26.220864][ 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)
[   26.222219][  T478] RSP: 002b:00007ffc1fdafba8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.222708][  T478] RAX: ffffffffffffffda RBX: 00007ffc1fdb02d0 RCX: 00007fca124e31e7
[   26.223180][  T478] RDX: 0000000000000000 RSI: 00007ffc1fdafc10 RDI: 0000000000000005
[   26.223887][  T478] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   26.224595][  T478] R10: 0000000034e7b910 R11: 0000000000000246 R12: 0000000000000004
[   26.225072][  T478] R13: 00000000686e3e56 R14: 0000000000499600 R15: 0000000000000000
| [   55.192580][  T627] ------------[ cut here ]------------
| [ 55.192919][ T627] WARNING: CPU: 1 PID: 627 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   55.194764][  T627] Modules linked in: sch_tbf bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   55.196086][  T627] Tainted: [W]=WARN
[   55.196340][  T627] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 55.196736][ T627] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 55.197069][ T627] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   55.198205][  T627] RSP: 0018:ffffc90000796f70 EFLAGS: 00010246
[   55.198616][  T627] RAX: 0000000000000000 RBX: ffff8880050b2000 RCX: 0000000000000001
[   55.199086][  T627] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   55.199574][  T627] RBP: ffffc90000797058 R08: 0000000000000000 R09: 0000000000000000
[   55.200057][  T627] R10: ffffc90000797088 R11: ffffffff96600130 R12: 1ffff920000f2df2
[   55.200547][  T627] R13: 0000000000002710 R14: ffffc90000797088 R15: ffff8880050b2f08
[   55.201038][  T627] FS:  00007f25a15fa800(0000) GS:ffff888099f37000(0000) knlGS:0000000000000000
[   55.201618][  T627] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.202017][  T627] CR2: 00000000004e5630 CR3: 0000000013154002 CR4: 0000000000772ef0
[   55.202499][  T627] PKRU: 55555554
[   55.202742][  T627] Call Trace:
[   55.202978][  T627]  <TASK>
[ 55.203146][ T627] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 55.203564][ T627] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 55.203938][ T627] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 55.204267][ T627] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.204584][ T627] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 55.204896][ T627] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.205209][ T627] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.205541][ T627] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.205861][ T627] ? ___sys_sendmsg (net/socket.c:2670) 
[ 55.206175][ T627] ? __sys_sendmsg (net/socket.c:2700) 
[ 55.206497][ T627] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.206814][ T627] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 55.207215][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.207555][ T627] netif_set_mtu (net/core/dev.c:9652) 
[ 55.207875][ T627] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 55.208209][ T627] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 55.208460][ T627] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 55.208895][ T627] br_del_if (net/bridge/br_if.c:743) bridge 
[ 55.209266][ T627] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 55.209600][ T627] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 55.209918][ T627] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.210257][ T627] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 55.210666][ T627] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 55.210987][ T627] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 55.211321][ T627] ? __kernel_text_address (kernel/extable.c:79) 
[ 55.211654][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.211972][ T627] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 55.212299][ T627] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 55.212698][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.213022][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.213356][ T627] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 55.213670][ T627] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 55.213989][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.214333][ T627] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 55.214649][ T627] ? __create_object (mm/kmemleak.c:771) 
[ 55.214972][ T627] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 55.215300][ T627] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 55.215627][ T627] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 55.216018][ T627] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 55.216354][ T627] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 55.216678][ T627] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.217012][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.217349][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.217663][ T627] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 55.217976][ T627] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.218308][ T627] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.218627][ T627] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 55.218943][ T627] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.219280][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.219604][ T627] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 55.219920][ T627] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.220239][ T627] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 55.220586][ T627] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 55.220900][ T627] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 55.221216][ T627] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.221563][ T627] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 55.221878][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.222195][ T627] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.222524][ T627] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 55.222847][ T627] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 55.223174][ T627] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.223503][ T627] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 55.223816][ T627] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 55.224218][ T627] ___sys_sendmsg (net/socket.c:2670) 
[ 55.224540][ T627] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 55.224854][ T627] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 55.225272][ T627] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 55.225592][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.225910][ T627] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.226232][ T627] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.226561][ T627] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 55.226877][ T627] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.227199][ T627] __sys_sendmsg (net/socket.c:2700) 
[ 55.227519][ T627] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 55.227918][ T627] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 55.228257][ T627] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.228579][ T627] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.228897][ T627] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   55.229302][  T627] RIP: 0033:0x7f25a17c71e7
[ 55.229633][ T627] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   55.230774][  T627] RSP: 002b:00007ffda5dcec98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   55.231270][  T627] RAX: ffffffffffffffda RBX: 00007ffda5dcf3c0 RCX: 00007f25a17c71e7
[   55.231765][  T627] RDX: 0000000000000000 RSI: 00007ffda5dced00 RDI: 0000000000000005
[   55.232261][  T627] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   55.232742][  T627] R10: 00007f25a16c4ee8 R11: 0000000000000246 R12: 0000000000000003
[   55.233217][  T627] R13: 00000000686e3e73 R14: 0000000000499600 R15: 0000000000000000
| [   55.687722][  T635] ------------[ cut here ]------------
| [ 55.688087][ T635] WARNING: CPU: 2 PID: 635 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) 
| [   55.689109][  T635] Modules linked in: sch_tbf bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   55.690514][  T635] Tainted: [W]=WARN
[   55.690773][  T635] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 55.691199][ T635] 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) 
[ 55.691595][ T635] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   55.692813][  T635] RSP: 0018:ffffc9000093ef70 EFLAGS: 00010246
[   55.693233][  T635] RAX: 0000000000000000 RBX: ffff8880020ea000 RCX: 0000000000000001
[   55.693746][  T635] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   55.694239][  T635] RBP: ffffc9000093f058 R08: 0000000000000000 R09: 0000000000000000
[   55.694736][  T635] R10: ffffc9000093f088 R11: ffffffff9a779160 R12: 1ffff92000127df2
[   55.695229][  T635] R13: 0000000000002710 R14: ffffc9000093f088 R15: ffff8880020eaf08
[   55.695770][  T635] FS:  00007fd19206d800(0000) GS:ffff888099fb7000(0000) knlGS:0000000000000000
[   55.696373][  T635] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.696791][  T635] CR2: 00000000004e5628 CR3: 0000000008ca4004 CR4: 0000000000772ef0
[   55.697295][  T635] PKRU: 55555554
[   55.697548][  T635] Call Trace:
[   55.697799][  T635]  <TASK>
[ 55.697984][ T635] ? __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) 
[ 55.698413][ T635] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 55.698799][ T635] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 55.699132][ T635] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.699492][ T635] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 55.699827][ T635] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.700161][ T635] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.700507][ T635] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.700844][ T635] ? ___sys_sendmsg (net/socket.c:2670) 
[ 55.701172][ T635] ? __sys_sendmsg (net/socket.c:2700) 
[ 55.701521][ T635] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.701853][ T635] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 55.702280][ T635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.702623][ T635] netif_set_mtu (net/core/dev.c:9652) 
[ 55.702961][ T635] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 55.703344][ T635] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 55.703604][ T635] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 55.704057][ T635] br_del_if (net/bridge/br_if.c:743) bridge 
[ 55.704438][ T635] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 55.704770][ T635] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 55.705104][ T635] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.705448][ T635] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 55.705870][ T635] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 55.706200][ T635] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 55.706544][ T635] ? __kernel_text_address (kernel/extable.c:79) 
[ 55.706879][ T635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.707217][ T635] ? __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) 
[ 55.707574][ T635] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 55.707996][ T635] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.708356][ T635] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.708690][ T635] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 55.709020][ T635] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 55.709374][ T635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.709708][ T635] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 55.710037][ T635] ? __create_object (mm/kmemleak.c:771) 
[ 55.710383][ T635] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 55.710717][ T635] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 55.711055][ T635] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 55.711500][ T635] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 55.711843][ T635] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 55.712181][ T635] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.712523][ T635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.712861][ T635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.713189][ T635] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 55.713529][ T635] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.713868][ T635] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.714197][ T635] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 55.714539][ T635] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.714875][ T635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.715212][ T635] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 55.715569][ T635] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.715913][ T635] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 55.716277][ T635] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 55.716607][ T635] ? 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) 
[ 55.716945][ T635] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.717289][ T635] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 55.717619][ T635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.717962][ T635] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.718309][ T635] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 55.718651][ T635] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 55.718993][ T635] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.719353][ T635] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 55.719693][ T635] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 55.720120][ T635] ___sys_sendmsg (net/socket.c:2670) 
[ 55.720463][ T635] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 55.720797][ T635] ? __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) 
[ 55.721216][ T635] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 55.721571][ T635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.721907][ T635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.722253][ T635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.722587][ T635] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 55.722918][ T635] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.723281][ T635] __sys_sendmsg (net/socket.c:2700) 
[ 55.723623][ T635] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 55.724039][ T635] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 55.724399][ T635] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.724735][ T635] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.725065][ T635] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   55.725480][  T635] RIP: 0033:0x7fd19223a1e7
[ 55.725822][ T635] 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)
[   55.726984][  T635] RSP: 002b:00007ffeb5e0a6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   55.727501][  T635] RAX: ffffffffffffffda RBX: 00007ffeb5e0add0 RCX: 00007fd19223a1e7
[   55.727997][  T635] RDX: 0000000000000000 RSI: 00007ffeb5e0a710 RDI: 0000000000000005
[   55.728508][  T635] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   55.728995][  T635] R10: 00007fd192137ee8 R11: 0000000000000246 R12: 0000000000000003
[   55.729494][  T635] R13: 00000000686e3e74 R14: 0000000000499600 R15: 0000000000000000
| [   56.028759][  T639] ------------[ cut here ]------------
| [ 56.029160][ T639] WARNING: CPU: 2 PID: 639 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) 
| [   56.029802][  T639] Modules linked in: sch_tbf bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   56.031097][  T639] Tainted: [W]=WARN
[   56.031356][  T639] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 56.031742][ T639] 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) 
[ 56.032075][ T639] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   56.033182][  T639] RSP: 0018:ffffc900009a7140 EFLAGS: 00010246
[   56.033595][  T639] RAX: 0000000000000000 RBX: ffff888008c2c000 RCX: 0000000000000001
[   56.034060][  T639] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   56.034543][  T639] RBP: ffffc900009a7230 R08: ffff888011700800 R09: 0000000000000000
[   56.035012][  T639] R10: ffffc900009a75c8 R11: ffffffff9b050668 R12: 1ffff92000134e2c
[   56.035485][  T639] R13: 00000000000005dc R14: ffffc900009a7880 R15: ffff888016175c60
[   56.035956][  T639] FS:  00007fc836254800(0000) GS:ffff888099fb7000(0000) knlGS:0000000000000000
[   56.036497][  T639] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.036906][  T639] CR2: 00000000004e5ab0 CR3: 00000000128de006 CR4: 0000000000772ef0
[   56.037391][  T639] PKRU: 55555554
[   56.037627][  T639] Call Trace:
[   56.037861][  T639]  <TASK>
[ 56.038031][ T639] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.038363][ T639] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 56.038679][ T639] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.038999][ T639] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 56.039327][ T639] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 56.039650][ T639] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 56.039971][ T639] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 56.040302][ T639] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 56.040705][ T639] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 56.041021][ T639] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 56.041368][ T639] ? __kernel_text_address (kernel/extable.c:79) 
[ 56.041695][ T639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.042018][ T639] ? __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) 
[ 56.042356][ T639] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 56.042758][ T639] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.043078][ T639] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.043409][ T639] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 56.043736][ T639] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 56.044058][ T639] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.044379][ T639] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 56.044700][ T639] ? __create_object (mm/kmemleak.c:771) 
[ 56.045020][ T639] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 56.045352][ T639] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 56.045668][ T639] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 56.046067][ T639] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 56.046404][ T639] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 56.046732][ T639] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.047047][ T639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.047364][ T639] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.047664][ T639] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 56.047966][ T639] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.048279][ T639] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.048589][ T639] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 56.048892][ T639] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.049197][ T639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.049528][ T639] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 56.049836][ T639] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.050139][ T639] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 56.050463][ T639] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 56.050787][ T639] ? 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) 
[ 56.051094][ T639] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 56.051424][ T639] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 56.051725][ T639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.052034][ T639] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 56.052351][ T639] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 56.052655][ T639] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 56.052965][ T639] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 56.053292][ T639] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 56.053594][ T639] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 56.053980][ T639] ___sys_sendmsg (net/socket.c:2670) 
[ 56.054289][ T639] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 56.054591][ T639] ? __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) 
[ 56.054978][ T639] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 56.055306][ T639] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.055610][ T639] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.055916][ T639] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.056217][ T639] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 56.056526][ T639] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.056837][ T639] __sys_sendmsg (net/socket.c:2700) 
[ 56.057138][ T639] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 56.057515][ T639] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 56.057841][ T639] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.058143][ T639] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 56.058459][ T639] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   56.058833][  T639] RIP: 0033:0x7fc8364211e7
[ 56.059152][ T639] 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)
[   56.060208][  T639] RSP: 002b:00007ffc08f5c7c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   56.060668][  T639] RAX: ffffffffffffffda RBX: 00007ffc08f5cef0 RCX: 00007fc8364211e7
[   56.061114][  T639] RDX: 0000000000000000 RSI: 00007ffc08f5c830 RDI: 0000000000000005
[   56.061579][  T639] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   56.062028][  T639] R10: 00007fc83631eee8 R11: 0000000000000246 R12: 0000000000000004
[   56.062483][  T639] R13: 00000000686e3e74 R14: 0000000000499600 R15: 0000000000000000
| [   56.476193][  T645] ------------[ cut here ]------------
| [ 56.477399][ T645] WARNING: CPU: 3 PID: 645 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) 
| [   56.478019][  T645] Modules linked in: sch_tbf bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   56.479443][  T645] Tainted: [W]=WARN
[   56.479693][  T645] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 56.480079][ T645] 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) 
[ 56.480433][ T645] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   56.481586][  T645] RSP: 0018:ffffc90000a16f70 EFLAGS: 00010246
[   56.481995][  T645] RAX: 0000000000000000 RBX: ffff8880050b2000 RCX: 0000000000000001
[   56.482482][  T645] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   56.482946][  T645] RBP: ffffc90000a17058 R08: 0000000000000000 R09: 0000000000000000
[   56.483434][  T645] R10: ffffc90000a17088 R11: ffffffff9a779160 R12: 1ffff92000142df2
[   56.483909][  T645] R13: 00000000000005dc R14: ffffc90000a17088 R15: ffff8880050b2f08
[   56.484395][  T645] FS:  00007fa9d683e800(0000) GS:ffff88809a037000(0000) knlGS:0000000000000000
[   56.484964][  T645] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   56.485365][  T645] CR2: 00000000004e73c0 CR3: 0000000011656004 CR4: 0000000000772ef0
[   56.485851][  T645] PKRU: 55555554
[   56.486086][  T645] Call Trace:
[   56.486330][  T645]  <TASK>
[ 56.486488][ T645] ? __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) 
[ 56.486880][ T645] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 56.487265][ T645] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 56.487578][ T645] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 56.487891][ T645] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 56.488212][ T645] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 56.488532][ T645] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 56.488852][ T645] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 56.489162][ T645] ? ___sys_sendmsg (net/socket.c:2670) 
[ 56.489490][ T645] ? __sys_sendmsg (net/socket.c:2700) 
[ 56.489797][ T645] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 56.490123][ T645] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 56.490529][ T645] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.490858][ T645] netif_set_mtu (net/core/dev.c:9652) 
[ 56.491181][ T645] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 56.491537][ T645] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 56.491772][ T645] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 56.492203][ T645] br_del_if (net/bridge/br_if.c:743) bridge 
[ 56.492574][ T645] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 56.492882][ T645] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 56.493223][ T645] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 56.493560][ T645] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 56.493961][ T645] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 56.494292][ T645] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 56.494599][ T645] ? __kernel_text_address (kernel/extable.c:79) 
[ 56.494909][ T645] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.495220][ T645] ? __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) 
[ 56.495556][ T645] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 56.495940][ T645] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.496258][ T645] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.496565][ T645] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 56.496871][ T645] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 56.497180][ T645] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.497498][ T645] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 56.497805][ T645] ? __create_object (mm/kmemleak.c:771) 
[ 56.498126][ T645] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 56.498446][ T645] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 56.498754][ T645] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 56.499136][ T645] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 56.499460][ T645] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 56.499775][ T645] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.500082][ T645] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.500403][ T645] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.500732][ T645] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 56.501039][ T645] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.501384][ T645] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 56.501696][ T645] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 56.502008][ T645] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.502343][ T645] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.502657][ T645] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 56.502973][ T645] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 56.503309][ T645] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 56.503628][ T645] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 56.503933][ T645] ? 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) 
[ 56.504253][ T645] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 56.504564][ T645] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 56.504868][ T645] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.505206][ T645] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 56.505551][ T645] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 56.505861][ T645] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 56.506183][ T645] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 56.506505][ T645] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 56.506811][ T645] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 56.507203][ T645] ___sys_sendmsg (net/socket.c:2670) 
[ 56.507522][ T645] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 56.507831][ T645] ? __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) 
[ 56.508264][ T645] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 56.508578][ T645] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.508885][ T645] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 56.509197][ T645] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 56.509516][ T645] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 56.509832][ T645] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 56.510152][ T645] __sys_sendmsg (net/socket.c:2700) 
[ 56.510472][ T645] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 56.510861][ T645] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 56.511201][ T645] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 56.511567][ T645] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 56.511899][ T645] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   56.512304][  T645] RIP: 0033:0x7fa9d6a0b1e7
[ 56.512646][ T645] 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)
[   56.513790][  T645] RSP: 002b:00007ffebcac83d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   56.514273][  T645] RAX: ffffffffffffffda RBX: 00007ffebcac8b00 RCX: 00007fa9d6a0b1e7
[   56.514743][  T645] RDX: 0000000000000000 RSI: 00007ffebcac8440 RDI: 0000000000000005
[   56.515230][  T645] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   56.515704][  T645] R10: 00007fa9d6908ee8 R11: 0000000000000246 R12: 0000000000000003
[   56.516173][  T645] R13: 00000000686e3e75 R14: 0000000000499600 R15: 0000000000000000
| [   57.032347][  T651] ------------[ cut here ]------------
| [ 57.032679][ T651] WARNING: CPU: 1 PID: 651 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) 
| [   57.034579][  T651] Modules linked in: sch_tbf bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   57.035895][  T651] Tainted: [W]=WARN
[   57.036150][  T651] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 57.036582][ T651] 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) 
[ 57.036916][ T651] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   57.038017][  T651] RSP: 0018:ffffc90000ba6f70 EFLAGS: 00010246
[   57.038421][  T651] RAX: 0000000000000000 RBX: ffff8880020ea000 RCX: 0000000000000001
[   57.038881][  T651] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   57.039348][  T651] RBP: ffffc90000ba7058 R08: 0000000000000000 R09: 0000000000000000
[   57.039807][  T651] R10: ffffc90000ba7088 R11: ffffffff9a779160 R12: 1ffff92000174df2
[   57.040303][  T651] R13: 00000000000005dc R14: ffffc90000ba7088 R15: ffff8880020eaf08
[   57.040767][  T651] FS:  00007f92c756c800(0000) GS:ffff888099f37000(0000) knlGS:0000000000000000
[   57.041332][  T651] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.041722][  T651] CR2: 00000000004e73b8 CR3: 0000000004edf001 CR4: 0000000000772ef0
[   57.042182][  T651] PKRU: 55555554
[   57.042425][  T651] Call Trace:
[   57.042658][  T651]  <TASK>
[ 57.042818][ T651] ? __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) 
[ 57.043208][ T651] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 57.043581][ T651] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 57.043896][ T651] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 57.044202][ T651] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 57.044532][ T651] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 57.044842][ T651] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 57.045158][ T651] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 57.045474][ T651] ? ___sys_sendmsg (net/socket.c:2670) 
[ 57.045776][ T651] ? __sys_sendmsg (net/socket.c:2700) 
[ 57.046077][ T651] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 57.046391][ T651] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 57.046797][ T651] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.047113][ T651] netif_set_mtu (net/core/dev.c:9652) 
[ 57.047430][ T651] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 57.047760][ T651] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 57.047997][ T651] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 57.048449][ T651] br_del_if (net/bridge/br_if.c:743) bridge 
[ 57.048791][ T651] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 57.049101][ T651] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 57.049424][ T651] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 57.049749][ T651] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 57.050157][ T651] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 57.050476][ T651] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 57.050789][ T651] ? __kernel_text_address (kernel/extable.c:79) 
[ 57.051099][ T651] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.051441][ T651] ? __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) 
[ 57.051766][ T651] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 57.052170][ T651] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.052511][ T651] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.052819][ T651] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 57.053136][ T651] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 57.053476][ T651] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.053784][ T651] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 57.054106][ T651] ? __create_object (mm/kmemleak.c:771) 
[ 57.054428][ T651] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 57.054748][ T651] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 57.055106][ T651] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 57.055510][ T651] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 57.055844][ T651] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 57.056164][ T651] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 57.056514][ T651] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.056848][ T651] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.057179][ T651] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 57.057504][ T651] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 57.057828][ T651] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 57.058143][ T651] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 57.058476][ T651] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 57.058801][ T651] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.059133][ T651] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 57.059476][ T651] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 57.059791][ T651] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 57.060142][ T651] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 57.060465][ T651] ? 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) 
[ 57.060777][ T651] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 57.061120][ T651] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 57.061465][ T651] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.061794][ T651] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 57.062118][ T651] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 57.062460][ T651] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 57.062788][ T651] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 57.063111][ T651] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 57.063428][ T651] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 57.063866][ T651] ___sys_sendmsg (net/socket.c:2670) 
[ 57.064207][ T651] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 57.064566][ T651] ? __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) 
[ 57.064985][ T651] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 57.065353][ T651] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.065673][ T651] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.065988][ T651] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.066341][ T651] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 57.066666][ T651] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 57.067035][ T651] __sys_sendmsg (net/socket.c:2700) 
[ 57.067573][ T651] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 57.068286][ T651] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 57.068694][ T651] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.069207][ T651] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 57.069704][ T651] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   57.070332][  T651] RIP: 0033:0x7f92c77391e7
[ 57.070885][ T651] 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)
[   57.072800][  T651] RSP: 002b:00007ffe803d3718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   57.073637][  T651] RAX: ffffffffffffffda RBX: 00007ffe803d3e40 RCX: 00007f92c77391e7
[   57.074480][  T651] RDX: 0000000000000000 RSI: 00007ffe803d3780 RDI: 0000000000000005
[   57.075340][  T651] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   57.076157][  T651] R10: 00007f92c7636ee8 R11: 0000000000000246 R12: 0000000000000003
[   57.077005][  T651] R13: 00000000686e3e75 R14: 0000000000499600 R15: 0000000000000000
| [   57.417054][  T655] ------------[ cut here ]------------
| [ 57.417434][ T655] WARNING: CPU: 2 PID: 655 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) 
| [   57.418005][  T655] Modules linked in: sch_tbf bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   57.419197][  T655] Tainted: [W]=WARN
[   57.419442][  T655] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 57.419801][ T655] 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) 
[ 57.420104][ T655] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   57.421163][  T655] RSP: 0018:ffffc900006b7140 EFLAGS: 00010246
[   57.421568][  T655] RAX: 0000000000000000 RBX: ffff888007939000 RCX: 0000000000000001
[   57.422021][  T655] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   57.422464][  T655] RBP: ffffc900006b7230 R08: ffff88801261a000 R09: 0000000000000000
[   57.422924][  T655] R10: ffffc900006b75c8 R11: ffffffff9b050668 R12: 1ffff920000d6e2c
[   57.423385][  T655] R13: 00000000000005dc R14: ffffc900006b7880 R15: ffff8880090426e0
[   57.423848][  T655] FS:  00007f57a2792800(0000) GS:ffff888099fb7000(0000) knlGS:0000000000000000
[   57.424362][  T655] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.424757][  T655] CR2: 00000000004e5aa8 CR3: 0000000015b1f003 CR4: 0000000000772ef0
[   57.425192][  T655] PKRU: 55555554
[   57.425437][  T655] Call Trace:
[   57.425658][  T655]  <TASK>
[ 57.425817][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.426115][ T655] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 57.426422][ T655] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 57.426716][ T655] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 57.427010][ T655] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 57.427316][ T655] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 57.427624][ T655] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 57.427925][ T655] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 57.428305][ T655] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 57.428594][ T655] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 57.428885][ T655] ? __kernel_text_address (kernel/extable.c:79) 
[ 57.429178][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.429483][ T655] ? __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) 
[ 57.429783][ T655] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 57.430136][ T655] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.430442][ T655] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.430731][ T655] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 57.431019][ T655] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 57.431341][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.431641][ T655] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 57.431937][ T655] ? __create_object (mm/kmemleak.c:771) 
[ 57.432231][ T655] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 57.432545][ T655] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 57.432842][ T655] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 57.433201][ T655] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 57.433524][ T655] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 57.433842][ T655] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 57.434143][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.434474][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.434791][ T655] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 57.435095][ T655] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 57.435421][ T655] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 57.435726][ T655] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 57.436027][ T655] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 57.436335][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.436645][ T655] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 57.436937][ T655] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 57.437227][ T655] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 57.437542][ T655] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 57.437832][ T655] ? 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) 
[ 57.438124][ T655] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 57.438449][ T655] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 57.438749][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.439045][ T655] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 57.439352][ T655] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 57.439644][ T655] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 57.439941][ T655] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 57.440235][ T655] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 57.440538][ T655] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 57.440918][ T655] ___sys_sendmsg (net/socket.c:2670) 
[ 57.441216][ T655] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 57.441540][ T655] ? __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) 
[ 57.441904][ T655] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 57.442196][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.442501][ T655] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.442798][ T655] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.443091][ T655] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 57.443404][ T655] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 57.443702][ T655] __sys_sendmsg (net/socket.c:2700) 
[ 57.443986][ T655] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 57.444354][ T655] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 57.444665][ T655] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.444960][ T655] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 57.445264][ T655] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   57.445645][  T655] RIP: 0033:0x7f57a295f1e7
[ 57.445952][ T655] 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)
[   57.446978][  T655] RSP: 002b:00007ffc2560f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   57.447440][  T655] RAX: ffffffffffffffda RBX: 00007ffc2560f7f0 RCX: 00007f57a295f1e7
[   57.447888][  T655] RDX: 0000000000000000 RSI: 00007ffc2560f130 RDI: 0000000000000005
[   57.448337][  T655] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   57.448764][  T655] R10: 00007f57a285cee8 R11: 0000000000000246 R12: 0000000000000004
[   57.449202][  T655] R13: 00000000686e3e76 R14: 0000000000499600 R15: 0000000000000000
| [   58.661938][  T670] ------------[ cut here ]------------
| [ 58.662282][ T670] WARNING: CPU: 0 PID: 670 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) 
| [   58.662838][  T670] Modules linked in: sch_tbf bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   58.664004][  T670] Tainted: [W]=WARN
[   58.664217][  T670] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 58.664574][ T670] 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) 
[ 58.664861][ T670] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   58.665860][  T670] RSP: 0018:ffffc90000d1f140 EFLAGS: 00010246
[   58.666213][  T670] RAX: 0000000000000000 RBX: ffff88801289c000 RCX: 0000000000000001
[   58.666640][  T670] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   58.667067][  T670] RBP: ffffc90000d1f230 R08: ffff8880124b8800 R09: 0000000000000000
[   58.667519][  T670] R10: ffffc90000d1f5c8 R11: ffffffff9b050668 R12: 1ffff920001a3e2c
[   58.667934][  T670] R13: 00000000000005dc R14: ffffc90000d1f880 R15: ffff888016834760
[   58.668365][  T670] FS:  00007f46aaf91800(0000) GS:ffff888099eb7000(0000) knlGS:0000000000000000
[   58.668856][  T670] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   58.669211][  T670] CR2: 00000000004e5ab8 CR3: 00000000117f4002 CR4: 0000000000772ef0
[   58.669642][  T670] PKRU: 55555554
[   58.669853][  T670] Call Trace:
[   58.670061][  T670]  <TASK>
[ 58.670205][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 58.670504][ T670] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 58.670778][ T670] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 58.671062][ T670] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 58.671369][ T670] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 58.671647][ T670] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 58.671932][ T670] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 58.672215][ T670] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 58.672576][ T670] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 58.672853][ T670] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 58.673128][ T670] ? __kernel_text_address (kernel/extable.c:79) 
[ 58.673414][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 58.673700][ T670] ? __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) 
[ 58.673988][ T670] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 58.674340][ T670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 58.674620][ T670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 58.674897][ T670] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 58.675180][ T670] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 58.675483][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 58.675767][ T670] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 58.676040][ T670] ? __create_object (mm/kmemleak.c:771) 
[ 58.676329][ T670] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 58.676607][ T670] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 58.676881][ T670] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 58.677224][ T670] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 58.677514][ T670] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 58.677800][ T670] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 58.678078][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 58.678367][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 58.678644][ T670] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 58.678916][ T670] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 58.679199][ T670] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 58.679492][ T670] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 58.679796][ T670] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 58.680078][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 58.680380][ T670] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 58.680660][ T670] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 58.680944][ T670] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 58.681276][ T670] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 58.681582][ T670] ? 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) 
[ 58.681860][ T670] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 58.682138][ T670] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 58.682420][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 58.682701][ T670] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 58.682981][ T670] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 58.683280][ T670] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 58.683572][ T670] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 58.683853][ T670] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 58.684130][ T670] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 58.684488][ T670] ___sys_sendmsg (net/socket.c:2670) 
[ 58.684765][ T670] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 58.685040][ T670] ? __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) 
[ 58.685392][ T670] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 58.685680][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 58.686084][ T670] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 58.686376][ T670] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 58.686652][ T670] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 58.686928][ T670] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 58.687210][ T670] __sys_sendmsg (net/socket.c:2700) 
[ 58.687505][ T670] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 58.687855][ T670] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 58.688144][ T670] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 58.688429][ T670] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 58.688709][ T670] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   58.689052][  T670] RIP: 0033:0x7f46ab15e1e7
[ 58.689348][ T670] 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)
[   58.690344][  T670] RSP: 002b:00007fff57c516e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   58.690763][  T670] RAX: ffffffffffffffda RBX: 00007fff57c51e10 RCX: 00007f46ab15e1e7
[   58.691176][  T670] RDX: 0000000000000000 RSI: 00007fff57c51750 RDI: 0000000000000005
[   58.691624][  T670] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   58.692047][  T670] R10: 00007f46ab05bee8 R11: 0000000000000246 R12: 0000000000000004
[   58.692471][  T670] R13: 00000000686e3e77 R14: 0000000000499600 R15: 0000000000000000
| [   59.917673][  T682] ------------[ cut here ]------------
| [ 59.918044][ T682] WARNING: CPU: 2 PID: 682 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) 
| [   59.918664][  T682] Modules linked in: sch_tbf bridge stp llc act_gact cls_flower sch_ingress 8021q vrf veth
| [   59.919876][  T682] Tainted: [W]=WARN
[   59.920105][  T682] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 59.920491][ T682] 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) 
[ 59.920804][ T682] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   59.921849][  T682] RSP: 0018:ffffc90000d3f140 EFLAGS: 00010246
[   59.922221][  T682] RAX: 0000000000000000 RBX: ffff888007e09000 RCX: 0000000000000001
[   59.922683][  T682] RDX: 0000000000000000 RSI: ffffffff9a29b941 RDI: ffffffff99a555e0
[   59.923126][  T682] RBP: ffffc90000d3f230 R08: ffff888008a63800 R09: 0000000000000000
[   59.923592][  T682] R10: ffffc90000d3f5c8 R11: ffffffff9b050668 R12: 1ffff920001a7e2c
[   59.924034][  T682] R13: 00000000000005dc R14: ffffc90000d3f880 R15: ffff888016b3dfe0
[   59.924630][  T682] FS:  00007f4c864f1800(0000) GS:ffff888099fb7000(0000) knlGS:0000000000000000
[   59.925330][  T682] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   59.925862][  T682] CR2: 00000000004e5aa0 CR3: 0000000012855003 CR4: 0000000000772ef0
[   59.926370][  T682] PKRU: 55555554
[   59.926598][  T682] Call Trace:
[   59.926819][  T682]  <TASK>
[ 59.926975][ T682] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.927316][ T682] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 59.927614][ T682] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.927913][ T682] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 59.928207][ T682] ? is_bpf_text_address (kernel/bpf/core.c:777) 
[ 59.928518][ T682] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 59.928814][ T682] do_setlink.constprop.0 (net/core/rtnetlink.c:3106) 
[ 59.929116][ T682] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 59.929499][ T682] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 59.929796][ T682] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 59.930091][ T682] ? __kernel_text_address (kernel/extable.c:79) 
[ 59.930398][ T682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.930694][ T682] ? __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) 
[ 59.930988][ T682] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 59.931393][ T682] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.931696][ T682] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.931988][ T682] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 59.932294][ T682] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 59.932589][ T682] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.932883][ T682] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 59.933182][ T682] ? __create_object (mm/kmemleak.c:771) 
[ 59.933512][ T682] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 59.933806][ T682] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 59.934137][ T682] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 59.934522][ T682] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 59.934828][ T682] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 59.935149][ T682] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 59.935474][ T682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.935780][ T682] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.936115][ T682] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 59.936432][ T682] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.936732][ T682] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 59.937025][ T682] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 59.937355][ T682] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 59.937653][ T682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.937954][ T682] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 59.938279][ T682] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 59.938575][ T682] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 59.938887][ T682] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 59.939197][ T682] ? 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) 
[ 59.939522][ T682] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 59.939823][ T682] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 59.940115][ T682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.940444][ T682] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 59.940743][ T682] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 59.941043][ T682] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 59.941389][ T682] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 59.941689][ T682] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 59.941981][ T682] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 59.942411][ T682] ___sys_sendmsg (net/socket.c:2670) 
[ 59.942703][ T682] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 59.942997][ T682] ? __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) 
[ 59.943420][ T682] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 59.943726][ T682] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.944021][ T682] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.944352][ T682] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.944648][ T682] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 59.944943][ T682] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.945254][ T682] __sys_sendmsg (net/socket.c:2700) 
[ 59.945574][ T682] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 59.945932][ T682] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 59.946253][ T682] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.946565][ T682] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 59.946862][ T682] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   59.947225][  T682] RIP: 0033:0x7f4c866be1e7
[ 59.947579][ T682] 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)
[   59.948657][  T682] RSP: 002b:00007ffd4c9f5078 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   59.949104][  T682] RAX: ffffffffffffffda RBX: 00007ffd4c9f57a0 RCX: 00007f4c866be1e7
[   59.949570][  T682] RDX: 0000000000000000 RSI: 00007ffd4c9f50e0 RDI: 0000000000000005
[   59.950013][  T682] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[   59.950474][  T682] R10: 00007f4c865bbee8 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