======================================
| [   20.773455][  T310] veth1: entered promiscuous mode
| [   20.775372][  T310] ------------[ cut here ]------------
| [ 20.775746][ T310] WARNING: CPU: 1 PID: 310 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   20.776699][  T310] Modules linked in: bridge stp llc vrf veth
[   20.778287][  T310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.778758][ T310] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 20.779391][ T310] 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
[   20.781000][  T310] RSP: 0018:ffffc900005b6ef0 EFLAGS: 00010246
[   20.781471][  T310] RAX: 0000000000000000 RBX: ffff888016d8a000 RCX: 0000000000000001
[   20.782244][  T310] RDX: 0000000000000000 RSI: ffffffffb689b941 RDI: ffffffffb60555e0
[   20.782791][  T310] RBP: ffffc900005b6fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.783479][  T310] R10: ffffc900005b7010 R11: ffffffffb76a8918 R12: 1ffff920000b6de2
[   20.784182][  T310] R13: 00000000000005dc R14: ffffc900005b7010 R15: ffff888016d8af08
[   20.784750][  T310] FS:  00007fdaa98e9800(0000) GS:ffff88807d937000(0000) knlGS:0000000000000000
[   20.785684][  T310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.786342][  T310] CR2: 00000000004e5aa8 CR3: 00000000105f2006 CR4: 0000000000772ef0
[   20.787160][  T310] PKRU: 55555554
[   20.787468][  T310] Call Trace:
[   20.787970][  T310]  <TASK>
[ 20.788142][ T310] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.788551][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.789112][ T310] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.789548][ T310] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.790099][ T310] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.790494][ T310] netif_set_mtu (net/core/dev.c:9652) 
[ 20.790950][ T310] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.791328][ T310] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.791825][ T310] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.792137][ T310] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.792671][ T310] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.793102][ T310] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.793447][ T310] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.793815][ T310] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.794279][ T310] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.794648][ T310] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.794998][ T310] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.795363][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.795753][ T310] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 20.796140][ T310] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.796598][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.797011][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.797355][ T310] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.797733][ T310] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.798097][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.798436][ T310] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.799187][ T310] ? __create_object (mm/kmemleak.c:771) 
[ 20.799600][ T310] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.799975][ T310] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.800378][ T310] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.800845][ T310] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.801183][ T310] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.801545][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.801887][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.802232][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.802561][ T310] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.802973][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.803295][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.803644][ T310] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.803990][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.804377][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.804759][ T310] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.805142][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.805566][ T310] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.805948][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.806264][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 20.806650][ T310] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.807023][ T310] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.807381][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.807794][ T310] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.808159][ T310] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.808510][ T310] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.808873][ T310] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.809255][ T310] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.809648][ T310] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.810102][ T310] ___sys_sendmsg (net/socket.c:2670) 
[ 20.810460][ T310] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.810827][ T310] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 20.811262][ T310] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.811632][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.812027][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.812402][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.812738][ T310] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.813086][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.813472][ T310] __sys_sendmsg (net/socket.c:2700) 
[ 20.813884][ T310] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.814303][ T310] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.814632][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.815069][ T310] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.815453][ T310] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.815927][  T310] RIP: 0033:0x7fdaa9ab61e7
[ 20.816284][ T310] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   20.817601][  T310] RSP: 002b:00007ffcfb2e87c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.818223][  T310] RAX: ffffffffffffffda RBX: 00007ffcfb2e8ef0 RCX: 00007fdaa9ab61e7
[   20.818731][  T310] RDX: 0000000000000000 RSI: 00007ffcfb2e8830 RDI: 0000000000000005
[   20.819326][  T310] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.819875][  T310] R10: 000000003db17910 R11: 0000000000000246 R12: 0000000000000004
[   20.820455][  T310] R13: 00000000686e1463 R14: 0000000000499600 R15: 0000000000000000
| [   31.063535][  T363] ------------[ cut here ]------------
| [ 31.064171][ T363] WARNING: CPU: 3 PID: 363 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) 
| [   31.064832][  T363] Modules linked in: bridge stp llc vrf veth
| [   31.065970][  T363] Tainted: [W]=WARN
[   31.066233][  T363] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.066650][ T363] 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) 
[ 31.067142][ T363] 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
[   31.068668][  T363] RSP: 0018:ffffc90000836f70 EFLAGS: 00010246
[   31.069240][  T363] RAX: 0000000000000000 RBX: ffff888016d8a000 RCX: 0000000000000001
[   31.069749][  T363] RDX: 0000000000000000 RSI: ffffffffb689b941 RDI: ffffffffb60555e0
[   31.070396][  T363] RBP: ffffc90000837058 R08: 0000000000000000 R09: 0000000000000000
[   31.071065][  T363] R10: ffffc90000837088 R11: ffffffffb2c00130 R12: 1ffff92000106df2
[   31.071561][  T363] R13: 00000000000005dc R14: ffffc90000837088 R15: ffff888016d8af08
[   31.072140][  T363] FS:  00007f15461c3800(0000) GS:ffff88807da37000(0000) knlGS:0000000000000000
[   31.072719][  T363] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.073142][  T363] CR2: 00000000004e5aa8 CR3: 0000000012a5d005 CR4: 0000000000772ef0
[   31.073642][  T363] PKRU: 55555554
[   31.073907][  T363] Call Trace:
[   31.074163][  T363]  <TASK>
[ 31.074339][ T363] ? __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) 
[ 31.074775][ T363] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 31.075179][ T363] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 31.075523][ T363] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 31.075871][ T363] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.076199][ T363] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 31.076529][ T363] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.076874][ T363] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.077214][ T363] ? ___sys_sendmsg (net/socket.c:2670) 
[ 31.077549][ T363] ? __sys_sendmsg (net/socket.c:2700) 
[ 31.077911][ T363] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.078241][ T363] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 31.078642][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.078992][ T363] netif_set_mtu (net/core/dev.c:9652) 
[ 31.079323][ T363] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.079698][ T363] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.079957][ T363] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 31.080414][ T363] br_del_if (net/bridge/br_if.c:743) bridge 
[ 31.080771][ T363] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 31.081110][ T363] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 31.081438][ T363] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 31.081766][ T363] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 31.082206][ T363] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 31.082553][ T363] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 31.082894][ T363] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.083228][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.083553][ T363] ? __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) 
[ 31.083882][ T363] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 31.084292][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.084629][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.084980][ T363] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 31.085323][ T363] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 31.085658][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.086002][ T363] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.086328][ T363] ? __create_object (mm/kmemleak.c:771) 
[ 31.086665][ T363] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 31.086995][ T363] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 31.087318][ T363] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 31.087722][ T363] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 31.088067][ T363] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.088392][ T363] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.088711][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.089077][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.089412][ T363] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.089731][ T363] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.090074][ T363] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.090401][ T363] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.090735][ T363] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.091081][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.091408][ T363] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.091731][ T363] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.092058][ T363] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.092422][ T363] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.092745][ T363] ? 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) 
[ 31.093093][ T363] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 31.093417][ T363] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.093737][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.094118][ T363] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.094454][ T363] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.094788][ T363] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.095151][ T363] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.095502][ T363] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.095837][ T363] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.096271][ T363] ___sys_sendmsg (net/socket.c:2670) 
[ 31.096597][ T363] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 31.096941][ T363] ? __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) 
[ 31.097346][ T363] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.097668][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.098025][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.098368][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.098689][ T363] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 31.099020][ T363] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.099361][ T363] __sys_sendmsg (net/socket.c:2700) 
[ 31.099687][ T363] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 31.100126][ T363] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.100477][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.100825][ T363] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.101162][ T363] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.101570][  T363] RIP: 0033:0x7f15463901e7
[ 31.101942][ T363] 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)
[   31.103135][  T363] RSP: 002b:00007fffc5bea3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.103624][  T363] RAX: ffffffffffffffda RBX: 00007fffc5beab00 RCX: 00007f15463901e7
[   31.104127][  T363] RDX: 0000000000000000 RSI: 00007fffc5bea440 RDI: 0000000000000005
[   31.104621][  T363] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   31.105133][  T363] R10: 00007f154628dee8 R11: 0000000000000246 R12: 0000000000000003
[   31.105620][  T363] R13: 00000000686e146d R14: 0000000000499600 R15: 0000000000000000
| [   33.318562][  T365] ------------[ cut here ]------------
| [ 33.319022][ T365] WARNING: CPU: 1 PID: 365 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) 
| [   33.320305][  T365] Modules linked in: bridge stp llc vrf veth
| [   33.322191][  T365] Tainted: [W]=WARN
[   33.322490][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 33.323320][ T365] 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) 
[ 33.323732][ T365] 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
[   33.325873][  T365] RSP: 0018:ffffc90000856ef0 EFLAGS: 00010246
[   33.326394][  T365] RAX: 0000000000000000 RBX: ffff888016d8a000 RCX: 0000000000000001
[   33.327421][  T365] RDX: 0000000000000000 RSI: ffffffffb689b941 RDI: ffffffffb60555e0
[   33.328387][  T365] RBP: ffffc90000856fe0 R08: 0000000000000000 R09: 0000000000000000
[   33.329194][  T365] R10: ffffc90000857010 R11: ffffffffb76a8918 R12: 1ffff9200010ade2
[   33.329860][  T365] R13: 00000000000005dc R14: ffffc90000857010 R15: ffff888016d8af08
[   33.330683][  T365] FS:  00007fafb6661800(0000) GS:ffff88807d937000(0000) knlGS:0000000000000000
[   33.331659][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.332391][  T365] CR2: 00000000004e5aa8 CR3: 0000000004fa6003 CR4: 0000000000772ef0
[   33.333168][  T365] PKRU: 55555554
[   33.333524][  T365] Call Trace:
[   33.333954][  T365]  <TASK>
[ 33.334248][ T365] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 33.334831][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 33.335277][ T365] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 33.335662][ T365] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 33.336198][ T365] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 33.336582][ T365] netif_set_mtu (net/core/dev.c:9652) 
[ 33.336996][ T365] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 33.337491][ T365] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 33.338054][ T365] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 33.338385][ T365] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 33.339185][ T365] br_add_if (net/bridge/br_if.c:697) bridge 
[ 33.339732][ T365] do_set_master (net/core/rtnetlink.c:2948) 
[ 33.340280][ T365] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 33.340855][ T365] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 33.341543][ T365] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 33.342098][ T365] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 33.342634][ T365] ? __kernel_text_address (kernel/extable.c:79) 
[ 33.343212][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 33.343759][ T365] ? __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) 
[ 33.344342][ T365] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 33.345030][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 33.345588][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 33.346138][ T365] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 33.346679][ T365] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 33.347246][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 33.347787][ T365] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 33.348358][ T365] ? __create_object (mm/kmemleak.c:771) 
[ 33.348917][ T365] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 33.349511][ T365] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 33.349867][ T365] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 33.350304][ T365] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 33.350626][ T365] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 33.350978][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 33.351297][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 33.351643][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 33.352022][ T365] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 33.352356][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 33.352678][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 33.353018][ T365] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 33.353338][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 33.353666][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 33.354012][ T365] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 33.354328][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 33.354643][ T365] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 33.354995][ T365] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 33.355306][ T365] ? 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) 
[ 33.355629][ T365] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 33.355984][ T365] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 33.356296][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 33.356610][ T365] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 33.356951][ T365] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 33.357291][ T365] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 33.357614][ T365] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 33.357964][ T365] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 33.358295][ T365] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 33.358692][ T365] ___sys_sendmsg (net/socket.c:2670) 
[ 33.359037][ T365] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 33.359364][ T365] ? __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) 
[ 33.359752][ T365] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 33.360108][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 33.360425][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 33.360745][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 33.361077][ T365] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 33.361387][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 33.361703][ T365] __sys_sendmsg (net/socket.c:2700) 
[ 33.362017][ T365] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 33.362397][ T365] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 33.362716][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 33.363054][ T365] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 33.363367][ T365] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.363745][  T365] RIP: 0033:0x7fafb682e1e7
[ 33.364090][ T365] 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)
[   33.365221][  T365] RSP: 002b:00007ffebc2150f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.365691][  T365] RAX: ffffffffffffffda RBX: 00007ffebc215820 RCX: 00007fafb682e1e7
[   33.366181][  T365] RDX: 0000000000000000 RSI: 00007ffebc215160 RDI: 0000000000000005
[   33.366643][  T365] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   33.367131][  T365] R10: 00000000342f9910 R11: 0000000000000246 R12: 0000000000000004
[   33.367615][  T365] R13: 00000000686e146f R14: 0000000000499600 R15: 0000000000000000
| [   55.175455][  T472] ------------[ cut here ]------------
| [ 55.175819][ T472] WARNING: CPU: 3 PID: 472 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) 
| [   55.176478][  T472] Modules linked in: bridge stp llc vrf veth
| [   55.177656][  T472] Tainted: [W]=WARN
[   55.177902][  T472] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 55.178292][ T472] 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) 
[ 55.178616][ T472] 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
[   55.180464][  T472] RSP: 0018:ffffc90000e56f70 EFLAGS: 00010246
[   55.180878][  T472] RAX: 0000000000000000 RBX: ffff888016d8a000 RCX: 0000000000000001
[   55.181345][  T472] RDX: 0000000000000000 RSI: ffffffffb689b941 RDI: ffffffffb60555e0
[   55.181815][  T472] RBP: ffffc90000e57058 R08: 0000000000000000 R09: 0000000000000000
[   55.182288][  T472] R10: ffffc90000e57088 R11: ffffffffb6d79160 R12: 1ffff920001cadf2
[   55.182756][  T472] R13: 00000000000005dc R14: ffffc90000e57088 R15: ffff888016d8af08
[   55.183249][  T472] FS:  00007f42465ae800(0000) GS:ffff88807da37000(0000) knlGS:0000000000000000
[   55.183794][  T472] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.184197][  T472] CR2: 00000000004e5aa8 CR3: 0000000011b51006 CR4: 0000000000772ef0
[   55.184668][  T472] PKRU: 55555554
[   55.184911][  T472] Call Trace:
[   55.185147][  T472]  <TASK>
[ 55.185306][ T472] ? __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) 
[ 55.185696][ T472] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 55.186071][ T472] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 55.186383][ T472] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.186694][ T472] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 55.187013][ T472] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.187324][ T472] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.187635][ T472] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.187966][ T472] ? ___sys_sendmsg (net/socket.c:2670) 
[ 55.188308][ T472] ? __sys_sendmsg (net/socket.c:2700) 
[ 55.188616][ T472] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.188939][ T472] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 55.189333][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.189671][ T472] netif_set_mtu (net/core/dev.c:9652) 
[ 55.190010][ T472] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 55.190336][ T472] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 55.190573][ T472] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 55.191014][ T472] br_del_if (net/bridge/br_if.c:743) bridge 
[ 55.191356][ T472] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 55.191663][ T472] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 55.191985][ T472] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.192298][ T472] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 55.192692][ T472] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 55.193010][ T472] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 55.193319][ T472] ? __kernel_text_address (kernel/extable.c:79) 
[ 55.193638][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.193962][ T472] ? __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) 
[ 55.194275][ T472] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 55.194660][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.194985][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.195296][ T472] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 55.195603][ T472] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 55.195927][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.196237][ T472] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 55.196543][ T472] ? __create_object (mm/kmemleak.c:771) 
[ 55.196864][ T472] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 55.197183][ T472] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 55.197491][ T472] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 55.197882][ T472] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 55.198198][ T472] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 55.198510][ T472] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.198826][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.199138][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.199455][ T472] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 55.199772][ T472] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.200094][ T472] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.200403][ T472] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 55.200712][ T472] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.201034][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.201351][ T472] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 55.201662][ T472] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.201983][ T472] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 55.202300][ T472] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 55.202608][ T472] ? 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) 
[ 55.202930][ T472] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.203244][ T472] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 55.203552][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.203876][ T472] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.204191][ T472] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 55.204500][ T472] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 55.204846][ T472] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.205161][ T472] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 55.205467][ T472] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 55.205875][ T472] ___sys_sendmsg (net/socket.c:2670) 
[ 55.206181][ T472] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 55.206493][ T472] ? __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) 
[ 55.206891][ T472] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 55.207203][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.207514][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.207840][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.208149][ T472] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 55.208458][ T472] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.208775][ T472] __sys_sendmsg (net/socket.c:2700) 
[ 55.209099][ T472] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 55.209491][ T472] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 55.209824][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.210140][ T472] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.210451][ T472] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   55.210844][  T472] RIP: 0033:0x7f424677b1e7
[ 55.211170][ T472] 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)
[   55.212287][  T472] RSP: 002b:00007ffe674bef58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   55.212755][  T472] RAX: ffffffffffffffda RBX: 00007ffe674bf680 RCX: 00007f424677b1e7
[   55.213229][  T472] RDX: 0000000000000000 RSI: 00007ffe674befc0 RDI: 0000000000000005
[   55.213697][  T472] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   55.214171][  T472] R10: 00007f4246678ee8 R11: 0000000000000246 R12: 0000000000000003
[   55.214635][  T472] R13: 00000000686e1485 R14: 0000000000499600 R15: 0000000000000000
| [   57.627000][  T475] ------------[ cut here ]------------
| [ 57.627514][ T475] WARNING: CPU: 1 PID: 475 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) 
| [   57.628865][  T475] Modules linked in: bridge stp llc vrf veth
| [   57.630924][  T475] Tainted: [W]=WARN
[   57.631343][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 57.632324][ T475] 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) 
[ 57.633342][ T475] 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
[   57.635687][  T475] RSP: 0018:ffffc90000e86ef0 EFLAGS: 00010246
[   57.636745][  T475] RAX: 0000000000000000 RBX: ffff888016d8a000 RCX: 0000000000000001
[   57.637752][  T475] RDX: 0000000000000000 RSI: ffffffffb689b941 RDI: ffffffffb60555e0
[   57.638536][  T475] RBP: ffffc90000e86fe0 R08: 0000000000000000 R09: 0000000000000000
[   57.639352][  T475] R10: ffffc90000e87010 R11: ffffffffb76a8918 R12: 1ffff920001d0de2
[   57.640196][  T475] R13: 00000000000005dc R14: ffffc90000e87010 R15: ffff888016d8af08
[   57.641023][  T475] FS:  00007ffb7d5b9800(0000) GS:ffff88807d937000(0000) knlGS:0000000000000000
[   57.641984][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.642640][  T475] CR2: 00000000004e5aa8 CR3: 0000000004d89003 CR4: 0000000000772ef0
[   57.643436][  T475] PKRU: 55555554
[   57.643873][  T475] Call Trace:
[   57.644284][  T475]  <TASK>
[ 57.644566][ T475] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 57.645102][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.645631][ T475] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 57.646178][ T475] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 57.646864][ T475] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 57.647413][ T475] netif_set_mtu (net/core/dev.c:9652) 
[ 57.647989][ T475] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 57.648563][ T475] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 57.649335][ T475] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 57.649693][ T475] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 57.650160][ T475] br_add_if (net/bridge/br_if.c:697) bridge 
[ 57.650517][ T475] do_set_master (net/core/rtnetlink.c:2948) 
[ 57.650852][ T475] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 57.651169][ T475] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 57.651559][ T475] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 57.651883][ T475] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 57.652205][ T475] ? __kernel_text_address (kernel/extable.c:79) 
[ 57.652517][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.652838][ T475] ? __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) 
[ 57.653150][ T475] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 57.653547][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.653874][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.654186][ T475] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 57.654544][ T475] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 57.654872][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.655190][ T475] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 57.655495][ T475] ? __create_object (mm/kmemleak.c:771) 
[ 57.655836][ T475] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 57.656165][ T475] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 57.656476][ T475] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 57.656879][ T475] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 57.657205][ T475] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 57.657520][ T475] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 57.657836][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.658158][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.658468][ T475] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 57.658773][ T475] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 57.659102][ T475] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 57.659447][ T475] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 57.659782][ T475] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 57.660128][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.660459][ T475] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 57.660783][ T475] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 57.661116][ T475] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 57.661456][ T475] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 57.661781][ T475] ? 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) 
[ 57.662126][ T475] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 57.662456][ T475] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 57.662778][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.663116][ T475] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 57.663444][ T475] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 57.663769][ T475] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 57.664111][ T475] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 57.664448][ T475] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 57.664786][ T475] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 57.665221][ T475] ___sys_sendmsg (net/socket.c:2670) 
[ 57.665544][ T475] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 57.665874][ T475] ? __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) 
[ 57.666278][ T475] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 57.666602][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.666942][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 57.667272][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 57.667593][ T475] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 57.667926][ T475] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 57.668258][ T475] __sys_sendmsg (net/socket.c:2700) 
[ 57.668581][ T475] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 57.668987][ T475] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 57.669329][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 57.669668][ T475] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 57.670002][ T475] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   57.670405][  T475] RIP: 0033:0x7ffb7d7861e7
[ 57.670742][ T475] 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)
[   57.671919][  T475] RSP: 002b:00007fffe4f17a48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   57.672409][  T475] RAX: ffffffffffffffda RBX: 00007fffe4f18170 RCX: 00007ffb7d7861e7
[   57.672904][  T475] RDX: 0000000000000000 RSI: 00007fffe4f17ab0 RDI: 0000000000000005
[   57.673389][  T475] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   57.673891][  T475] R10: 0000000019e8d910 R11: 0000000000000246 R12: 0000000000000004
[   57.674382][  T475] R13: 00000000686e1488 R14: 0000000000499600 R15: 0000000000000000
| [   61.757006][  T517] ------------[ cut here ]------------
| [ 61.757328][ T517] WARNING: CPU: 3 PID: 517 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) 
| [   61.758930][  T517] Modules linked in: bridge stp llc vrf veth
| [   61.759963][  T517] Tainted: [W]=WARN
[   61.760201][  T517] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.760585][ T517] 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) 
[ 61.760914][ T517] 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
[   61.762003][  T517] RSP: 0018:ffffc90001036f70 EFLAGS: 00010246
[   61.762390][  T517] RAX: 0000000000000000 RBX: ffff888016d8a000 RCX: 0000000000000001
[   61.762851][  T517] RDX: 0000000000000000 RSI: ffffffffb689b941 RDI: ffffffffb60555e0
[   61.763303][  T517] RBP: ffffc90001037058 R08: 0000000000000000 R09: 0000000000000000
[   61.763762][  T517] R10: ffffc90001037088 R11: ffffffffb6d79160 R12: 1ffff92000206df2
[   61.764243][  T517] R13: 00000000000005dc R14: ffffc90001037088 R15: ffff888016d8af08
[   61.764702][  T517] FS:  00007f07546c1800(0000) GS:ffff88807da37000(0000) knlGS:0000000000000000
[   61.765244][  T517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.765630][  T517] CR2: 00000000004e5aa8 CR3: 000000001694b001 CR4: 0000000000772ef0
[   61.766098][  T517] PKRU: 55555554
[   61.766327][  T517] Call Trace:
[   61.766554][  T517]  <TASK>
[ 61.766714][ T517] ? __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) 
[ 61.767106][ T517] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 61.767457][ T517] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 61.767765][ T517] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 61.768079][ T517] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 61.768386][ T517] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 61.768690][ T517] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 61.769003][ T517] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 61.769310][ T517] ? ___sys_sendmsg (net/socket.c:2670) 
[ 61.769629][ T517] ? __sys_sendmsg (net/socket.c:2700) 
[ 61.769946][ T517] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 61.770259][ T517] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 61.770639][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.770962][ T517] netif_set_mtu (net/core/dev.c:9652) 
[ 61.771273][ T517] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 61.771597][ T517] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 61.771841][ T517] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 61.772278][ T517] br_del_if (net/bridge/br_if.c:743) bridge 
[ 61.772620][ T517] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 61.772934][ T517] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 61.773242][ T517] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 61.773552][ T517] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 61.773948][ T517] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 61.774254][ T517] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 61.774569][ T517] ? __kernel_text_address (kernel/extable.c:79) 
[ 61.774886][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.775197][ T517] ? __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) 
[ 61.775503][ T517] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 61.775892][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.776201][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.776505][ T517] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 61.776843][ T517] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 61.777152][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.777456][ T517] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 61.777761][ T517] ? __create_object (mm/kmemleak.c:771) 
[ 61.778076][ T517] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 61.778388][ T517] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 61.778696][ T517] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 61.779094][ T517] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 61.779420][ T517] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 61.779738][ T517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.780053][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.780366][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.780673][ T517] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 61.780984][ T517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 61.781294][ T517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.781605][ T517] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 61.781919][ T517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.782228][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.782536][ T517] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 61.782846][ T517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.783153][ T517] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 61.783469][ T517] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 61.783780][ T517] ? 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) 
[ 61.784096][ T517] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 61.784434][ T517] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 61.784737][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.785058][ T517] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 61.785366][ T517] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 61.785670][ T517] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 61.785991][ T517] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 61.786309][ T517] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 61.786618][ T517] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 61.787013][ T517] ___sys_sendmsg (net/socket.c:2670) 
[ 61.787314][ T517] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 61.787618][ T517] ? __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) 
[ 61.788008][ T517] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 61.788325][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.788634][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.788954][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.789260][ T517] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 61.789574][ T517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 61.789895][ T517] __sys_sendmsg (net/socket.c:2700) 
[ 61.790197][ T517] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 61.790576][ T517] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 61.790913][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.791222][ T517] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 61.791533][ T517] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.791921][  T517] RIP: 0033:0x7f075488e1e7
[ 61.792238][ T517] 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)
[   61.793337][  T517] RSP: 002b:00007ffdaec36568 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   61.793799][  T517] RAX: ffffffffffffffda RBX: 00007ffdaec36c90 RCX: 00007f075488e1e7
[   61.794269][  T517] RDX: 0000000000000000 RSI: 00007ffdaec365d0 RDI: 0000000000000005
[   61.794724][  T517] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   61.795202][  T517] R10: 00007f075478bee8 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_del_if
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:br_mtu_auto_adjust:br_add_if