======================================
| [   15.186343][  T295] br: port 1(d1) entered forwarding state
| [   15.187366][  T295] ------------[ cut here ]------------
| [ 15.187832][ T295] WARNING: CPU: 2 PID: 295 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) 
| [   15.188477][  T295] Modules linked in:
[   15.189344][  T295] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.190509][ T295] 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) 
[ 15.190838][ T295] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[   15.191969][  T295] RSP: 0018:ffffc90000d16ef0 EFLAGS: 00010246
[   15.192351][  T295] RAX: 0000000000000000 RBX: ffff88800542a000 RCX: 0000000000000001
[   15.192836][  T295] RDX: 0000000000000000 RSI: ffffffff96910751 RDI: ffffffff96058280
[   15.193287][  T295] RBP: ffffc90000d16fd8 R08: 0000000000000000 R09: 0000000000000000
[   15.193748][  T295] R10: ffffc90000d17008 R11: ffffffff97cceab8 R12: 1ffff920001a2de2
[   15.194199][  T295] R13: 00000000000005dc R14: ffffc90000d17008 R15: ffff88800542af48
[   15.194647][  T295] FS:  00007f64cf6f8800(0000) GS:ffff8880d4099000(0000) knlGS:0000000000000000
[   15.195162][  T295] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.195554][  T295] CR2: 00000000004e6e08 CR3: 000000000befc001 CR4: 0000000000772ef0
[   15.196000][  T295] PKRU: 55555554
[   15.196232][  T295] Call Trace:
[   15.196459][  T295]  <TASK>
[ 15.196656][ T295] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 15.196975][ T295] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 15.197301][ T295] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.197711][ T295] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.198021][ T295] netif_set_mtu (net/core/dev.c:9652) 
[ 15.198332][ T295] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 15.198653][ T295] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 15.199047][ T295] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 15.199279][ T295] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 15.199591][ T295] br_add_if (net/bridge/br_if.c:697) 
[ 15.199834][ T295] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 15.200130][ T295] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 15.200441][ T295] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 15.200773][ T295] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 15.201152][ T295] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 15.201461][ T295] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 15.201785][ T295] ? __kernel_text_address (kernel/extable.c:79) 
[ 15.202087][ T295] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.202387][ T295] ? __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) 
[ 15.202694][ T295] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 15.203088][ T295] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.203395][ T295] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.203707][ T295] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 15.204018][ T295] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 15.204321][ T295] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.204645][ T295] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 15.204948][ T295] ? __create_object (mm/kmemleak.c:771) 
[ 15.205261][ T295] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 15.205575][ T295] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 15.205902][ T295] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.206265][ T295] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 15.206593][ T295] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 15.206901][ T295] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.207196][ T295] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.207531][ T295] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.207837][ T295] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 15.208141][ T295] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.208448][ T295] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.208763][ T295] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 15.209075][ T295] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.209388][ T295] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.209717][ T295] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 15.210024][ T295] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.210323][ T295] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 15.210656][ T295] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 15.210953][ T295] ? 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) 
[ 15.211254][ T295] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 15.211565][ T295] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 15.211878][ T295] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.212187][ T295] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 15.212507][ T295] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 15.212817][ T295] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 15.213137][ T295] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 15.213449][ T295] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 15.213773][ T295] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 15.214152][ T295] ___sys_sendmsg (net/socket.c:2670) 
[ 15.214445][ T295] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 15.214754][ T295] ? __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) 
[ 15.215141][ T295] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 15.215449][ T295] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.215767][ T295] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.216087][ T295] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.216403][ T295] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 15.216738][ T295] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.217055][ T295] __sys_sendmsg (net/socket.c:2700) 
[ 15.217359][ T295] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 15.217748][ T295] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 15.218067][ T295] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.218376][ T295] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.218694][ T295] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.219072][  T295] RIP: 0033:0x7f64cf8c51e7
[ 15.219396][ T295] 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)
[   15.220450][  T295] RSP: 002b:00007ffc5632c338 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   15.220931][  T295] RAX: ffffffffffffffda RBX: 00007ffc5632ca60 RCX: 00007f64cf8c51e7
[   15.221389][  T295] RDX: 0000000000000000 RSI: 00007ffc5632c3a0 RDI: 0000000000000005
[   15.221859][  T295] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   15.222301][  T295] R10: 000000000ca8d910 R11: 0000000000000246 R12: 0000000000000004
[   15.222754][  T295] R13: 00000000686e7fec R14: 0000000000499600 R15: 0000000000000000
| [   16.206246][  T324] ------------[ cut here ]------------
| [ 16.206575][ T324] WARNING: CPU: 2 PID: 324 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) 
| [   16.207162][  T324] Modules linked in:
| [   16.208132][  T324] Tainted: [W]=WARN
[   16.208375][  T324] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.209642][ T324] 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) 
[ 16.209964][ T324] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[   16.211026][  T324] RSP: 0018:ffffc90000e06ef0 EFLAGS: 00010246
[   16.211413][  T324] RAX: 0000000000000000 RBX: ffff88800542a000 RCX: 0000000000000001
[   16.211870][  T324] RDX: 0000000000000000 RSI: ffffffff96910751 RDI: ffffffff96058280
[   16.212321][  T324] RBP: ffffc90000e06fd8 R08: 0000000000000000 R09: 0000000000000000
[   16.212780][  T324] R10: ffffc90000e07008 R11: ffffffff97cceab8 R12: 1ffff920001c0de2
[   16.213232][  T324] R13: 00000000000005dc R14: ffffc90000e07008 R15: ffff88800542af48
[   16.213689][  T324] FS:  00007faea1b64800(0000) GS:ffff8880d4099000(0000) knlGS:0000000000000000
[   16.214216][  T324] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.214607][  T324] CR2: 00000000004e6e08 CR3: 000000000da94005 CR4: 0000000000772ef0
[   16.215066][  T324] PKRU: 55555554
[   16.215298][  T324] Call Trace:
[   16.215541][  T324]  <TASK>
[ 16.215706][ T324] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 16.216017][ T324] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.216324][ T324] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.216706][ T324] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.217017][ T324] netif_set_mtu (net/core/dev.c:9652) 
[ 16.217321][ T324] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 16.217654][ T324] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 16.218040][ T324] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 16.218276][ T324] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 16.218592][ T324] br_add_if (net/bridge/br_if.c:697) 
[ 16.218864][ T324] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 16.219165][ T324] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 16.219474][ T324] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 16.219791][ T324] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 16.220177][ T324] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 16.220487][ T324] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 16.220799][ T324] ? __kernel_text_address (kernel/extable.c:79) 
[ 16.221096][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.221396][ T324] ? __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) 
[ 16.221705][ T324] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 16.222071][ T324] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.222374][ T324] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.222678][ T324] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 16.222972][ T324] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 16.223270][ T324] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.223593][ T324] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 16.223896][ T324] ? __create_object (mm/kmemleak.c:771) 
[ 16.224199][ T324] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 16.224514][ T324] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 16.224832][ T324] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.225196][ T324] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 16.225506][ T324] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 16.225812][ T324] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.226112][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.226414][ T324] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.226721][ T324] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 16.227021][ T324] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.227320][ T324] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.227650][ T324] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 16.227955][ T324] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.228262][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.228594][ T324] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 16.228896][ T324] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.229212][ T324] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 16.229530][ T324] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 16.229826][ T324] ? 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) 
[ 16.230121][ T324] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 16.230419][ T324] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 16.230721][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.231024][ T324] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 16.231341][ T324] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 16.231658][ T324] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 16.231967][ T324] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 16.232275][ T324] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 16.232585][ T324] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 16.232971][ T324] ___sys_sendmsg (net/socket.c:2670) 
[ 16.233271][ T324] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 16.233582][ T324] ? __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) 
[ 16.233973][ T324] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 16.234283][ T324] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.234589][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.234890][ T324] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.235185][ T324] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 16.235488][ T324] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.235819][ T324] __sys_sendmsg (net/socket.c:2700) 
[ 16.236124][ T324] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 16.236507][ T324] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 16.236835][ T324] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.237129][ T324] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.237427][ T324] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.237826][  T324] RIP: 0033:0x7faea1d311e7
[ 16.238139][ T324] 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)
[   16.239194][  T324] RSP: 002b:00007ffdf2cf2b28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   16.239661][  T324] RAX: ffffffffffffffda RBX: 00007ffdf2cf3250 RCX: 00007faea1d311e7
[   16.240106][  T324] RDX: 0000000000000000 RSI: 00007ffdf2cf2b90 RDI: 0000000000000005
[   16.240567][  T324] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   16.241019][  T324] R10: 000000001232b910 R11: 0000000000000246 R12: 0000000000000004
[   16.241458][  T324] R13: 00000000686e7fed R14: 0000000000499600 R15: 0000000000000000
| [   17.249363][  T353] ------------[ cut here ]------------
| [ 17.249664][ T353] WARNING: CPU: 0 PID: 353 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) 
| [   17.250237][  T353] Modules linked in:
| [   17.251063][  T353] Tainted: [W]=WARN
[   17.251285][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.252392][ T353] 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) 
[ 17.252704][ T353] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[   17.253763][  T353] RSP: 0018:ffffc90000eb6ef0 EFLAGS: 00010246
[   17.254135][  T353] RAX: 0000000000000000 RBX: ffff88800542a000 RCX: 0000000000000001
[   17.254584][  T353] RDX: 0000000000000000 RSI: ffffffff96910751 RDI: ffffffff96058280
[   17.255022][  T353] RBP: ffffc90000eb6fd8 R08: 0000000000000000 R09: 0000000000000000
[   17.255460][  T353] R10: ffffc90000eb7008 R11: ffffffff97cceab8 R12: 1ffff920001d6de2
[   17.255907][  T353] R13: 00000000000005dc R14: ffffc90000eb7008 R15: ffff88800542af48
[   17.256346][  T353] FS:  00007fbb8401d800(0000) GS:ffff8880d3f99000(0000) knlGS:0000000000000000
[   17.256865][  T353] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.257232][  T353] CR2: 00000000004e6e08 CR3: 000000000ae41003 CR4: 0000000000772ef0
[   17.257684][  T353] PKRU: 55555554
[   17.257907][  T353] Call Trace:
[   17.258126][  T353]  <TASK>
[ 17.258276][ T353] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 17.258584][ T353] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 17.258877][ T353] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 17.259238][ T353] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.259542][ T353] netif_set_mtu (net/core/dev.c:9652) 
[ 17.259835][ T353] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 17.260137][ T353] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 17.260515][ T353] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 17.260740][ T353] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 17.261040][ T353] br_add_if (net/bridge/br_if.c:697) 
[ 17.261273][ T353] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 17.261571][ T353] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 17.261878][ T353] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 17.262174][ T353] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 17.262563][ T353] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 17.262854][ T353] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 17.263143][ T353] ? __kernel_text_address (kernel/extable.c:79) 
[ 17.263438][ T353] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.263739][ T353] ? __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) 
[ 17.264031][ T353] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 17.264393][ T353] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.264702][ T353] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.264992][ T353] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 17.265282][ T353] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 17.265583][ T353] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.265875][ T353] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 17.266161][ T353] ? __create_object (mm/kmemleak.c:771) 
[ 17.266451][ T353] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 17.266751][ T353] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 17.267048][ T353] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.267407][ T353] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 17.267720][ T353] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 17.268017][ T353] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.268307][ T353] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.268612][ T353] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.268906][ T353] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 17.269194][ T353] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.269501][ T353] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.269793][ T353] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 17.270086][ T353] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.270381][ T353] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.270685][ T353] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 17.270978][ T353] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.271267][ T353] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 17.271594][ T353] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 17.271885][ T353] ? 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) 
[ 17.272177][ T353] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 17.272470][ T353] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 17.272769][ T353] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.273066][ T353] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 17.273360][ T353] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 17.273677][ T353] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 17.273978][ T353] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 17.274271][ T353] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 17.274567][ T353] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 17.274942][ T353] ___sys_sendmsg (net/socket.c:2670) 
[ 17.275229][ T353] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 17.275525][ T353] ? __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) 
[ 17.275893][ T353] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 17.276189][ T353] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.276494][ T353] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.276792][ T353] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.277085][ T353] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 17.277375][ T353] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.277687][ T353] __sys_sendmsg (net/socket.c:2700) 
[ 17.277980][ T353] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 17.278346][ T353] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 17.278656][ T353] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.278949][ T353] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 17.279240][ T353] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   17.279605][  T353] RIP: 0033:0x7fbb841ea1e7
[ 17.279907][ T353] 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)
[   17.280956][  T353] RSP: 002b:00007ffe71213aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.281395][  T353] RAX: ffffffffffffffda RBX: 00007ffe712141d0 RCX: 00007fbb841ea1e7
[   17.281837][  T353] RDX: 0000000000000000 RSI: 00007ffe71213b10 RDI: 0000000000000005
[   17.282277][  T353] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   17.282719][  T353] R10: 0000000009edc910 R11: 0000000000000246 R12: 0000000000000004
[   17.283156][  T353] R13: 00000000686e7fee R14: 0000000000499600 R15: 0000000000000000
| [   98.858409][ T2548] ------------[ cut here ]------------
| [ 98.858782][ T2548] WARNING: CPU: 2 PID: 2548 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) 
| [   98.859403][ T2548] Modules linked in:
| [   98.860737][ T2548] Tainted: [W]=WARN
[   98.860978][ T2548] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.861361][ T2548] 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) 
[ 98.861692][ T2548] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[   98.862778][ T2548] RSP: 0018:ffffc90003bf6f60 EFLAGS: 00010246
[   98.863165][ T2548] RAX: 0000000000000000 RBX: ffff88800542a000 RCX: 0000000000000001
[   98.863637][ T2548] RDX: 0000000000000000 RSI: ffffffff96910751 RDI: ffffffff96058280
[   98.864095][ T2548] RBP: ffffc90003bf7050 R08: 0000000000000000 R09: 0000000000000000
[   98.864555][ T2548] R10: ffffc90003bf7080 R11: ffffffff92a00130 R12: 1ffff9200077edf0
[   98.865008][ T2548] R13: 00000000000005dc R14: ffffc90003bf7080 R15: ffff88800542af48
[   98.865463][ T2548] FS:  00007f5058b98800(0000) GS:ffff8880d4099000(0000) knlGS:0000000000000000
[   98.866003][ T2548] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.866390][ T2548] CR2: 00000000004e6e20 CR3: 000000001188d003 CR4: 0000000000772ef0
[   98.866867][ T2548] PKRU: 55555554
[   98.867103][ T2548] Call Trace:
[   98.867336][ T2548]  <TASK>
[ 98.867512][ T2548] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 98.867843][ T2548] ? __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) 
[ 98.868231][ T2548] ? br_del_if (net/bridge/br_if.c:742) 
[ 98.868475][ T2548] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 98.868801][ T2548] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 98.869109][ T2548] ? netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 98.869419][ T2548] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 98.869736][ T2548] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 98.870040][ T2548] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 98.870349][ T2548] ? ___sys_sendmsg (net/socket.c:2670) 
[ 98.870674][ T2548] ? __sys_sendmsg (net/socket.c:2700) 
[ 98.870992][ T2548] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 98.871306][ T2548] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 98.871698][ T2548] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.872020][ T2548] netif_set_mtu (net/core/dev.c:9652) 
[ 98.872330][ T2548] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 98.872667][ T2548] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 98.872907][ T2548] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 98.873216][ T2548] br_del_if (net/bridge/br_if.c:743) 
[ 98.873449][ T2548] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 98.873767][ T2548] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 98.874075][ T2548] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 98.874391][ T2548] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 98.874720][ T2548] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 98.875116][ T2548] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 98.875423][ T2548] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 98.875741][ T2548] ? __kernel_text_address (kernel/extable.c:79) 
[ 98.876048][ T2548] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.876357][ T2548] ? __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) 
[ 98.876673][ T2548] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 98.877058][ T2548] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.877373][ T2548] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.877696][ T2548] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 98.878001][ T2548] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 98.878312][ T2548] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.878642][ T2548] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 98.878953][ T2548] ? __create_object (mm/kmemleak.c:771) 
[ 98.879267][ T2548] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 98.879589][ T2548] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 98.879908][ T2548] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 98.880288][ T2548] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 98.880613][ T2548] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 98.880927][ T2548] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 98.881234][ T2548] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.881557][ T2548] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.881871][ T2548] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 98.882175][ T2548] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 98.882506][ T2548] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 98.882815][ T2548] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 98.883128][ T2548] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 98.883437][ T2548] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.883778][ T2548] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 98.884085][ T2548] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 98.884393][ T2548] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 98.884719][ T2548] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 98.885023][ T2548] ? 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) 
[ 98.885329][ T2548] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 98.885650][ T2548] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 98.885986][ T2548] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.886301][ T2548] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 98.886637][ T2548] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 98.886954][ T2548] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 98.887274][ T2548] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 98.887608][ T2548] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 98.887925][ T2548] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 98.888314][ T2548] ___sys_sendmsg (net/socket.c:2670) 
[ 98.888627][ T2548] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 98.888933][ T2548] ? __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) 
[ 98.889310][ T2548] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 98.889638][ T2548] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.889949][ T2548] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 98.890272][ T2548] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 98.890600][ T2548] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 98.890921][ T2548] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 98.891233][ T2548] __sys_sendmsg (net/socket.c:2700) 
[ 98.891550][ T2548] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 98.891925][ T2548] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 98.892247][ T2548] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 98.892565][ T2548] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 98.892874][ T2548] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   98.893248][ T2548] RIP: 0033:0x7f5058d651e7
[ 98.893580][ T2548] 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)
[   98.894661][ T2548] RSP: 002b:00007fffc5c17248 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   98.895127][ T2548] RAX: ffffffffffffffda RBX: 00007fffc5c17970 RCX: 00007f5058d651e7
[   98.895591][ T2548] RDX: 0000000000000000 RSI: 00007fffc5c172b0 RDI: 0000000000000005
[   98.896041][ T2548] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   98.896509][ T2548] R10: 00007f5058c62ee8 R11: 0000000000000246 R12: 0000000000000003
[   98.896958][ T2548] R13: 00000000686e8040 R14: 0000000000499600 R15: 0000000000000000
| [   99.569139][ T2556] ------------[ cut here ]------------
| [ 99.569450][ T2556] WARNING: CPU: 3 PID: 2556 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) 
| [   99.570040][ T2556] Modules linked in:
| [   99.571603][ T2556] Tainted: [W]=WARN
[   99.571827][ T2556] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 99.572195][ T2556] 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) 
[ 99.572504][ T2556] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[   99.573565][ T2556] RSP: 0018:ffffc90003e56f60 EFLAGS: 00010246
[   99.573936][ T2556] RAX: 0000000000000000 RBX: ffff88800542a000 RCX: 0000000000000001
[   99.574377][ T2556] RDX: 0000000000000000 RSI: ffffffff96910751 RDI: ffffffff96058280
[   99.574822][ T2556] RBP: ffffc90003e57050 R08: 0000000000000000 R09: 0000000000000000
[   99.575263][ T2556] R10: ffffc90003e57080 R11: ffffffff9738d1e0 R12: 1ffff920007cadf0
[   99.575711][ T2556] R13: 00000000000005dc R14: ffffc90003e57080 R15: ffff88800542af48
[   99.576153][ T2556] FS:  00007faaaf6d3800(0000) GS:ffff8880d4119000(0000) knlGS:0000000000000000
[   99.576673][ T2556] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   99.577043][ T2556] CR2: 00000000004e6e18 CR3: 00000000118ae005 CR4: 0000000000772ef0
[   99.577494][ T2556] PKRU: 55555554
[   99.577722][ T2556] Call Trace:
[   99.577942][ T2556]  <TASK>
[ 99.578090][ T2556] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 99.578383][ T2556] ? __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) 
[ 99.578755][ T2556] ? br_del_if (net/bridge/br_if.c:742) 
[ 99.579000][ T2556] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 99.579294][ T2556] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 99.579600][ T2556] ? netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 99.579893][ T2556] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 99.580183][ T2556] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 99.580472][ T2556] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 99.580772][ T2556] ? ___sys_sendmsg (net/socket.c:2670) 
[ 99.581063][ T2556] ? __sys_sendmsg (net/socket.c:2700) 
[ 99.581354][ T2556] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 99.581652][ T2556] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 99.582018][ T2556] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.582324][ T2556] netif_set_mtu (net/core/dev.c:9652) 
[ 99.582632][ T2556] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 99.582941][ T2556] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 99.583164][ T2556] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 99.583459][ T2556] br_del_if (net/bridge/br_if.c:743) 
[ 99.583701][ T2556] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 99.583993][ T2556] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 99.584286][ T2556] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 99.584588][ T2556] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 99.584884][ T2556] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 99.585255][ T2556] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 99.585554][ T2556] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 99.585845][ T2556] ? __kernel_text_address (kernel/extable.c:79) 
[ 99.586139][ T2556] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.586438][ T2556] ? __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) 
[ 99.586739][ T2556] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 99.587100][ T2556] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 99.587395][ T2556] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 99.587701][ T2556] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 99.587993][ T2556] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 99.588287][ T2556] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.588591][ T2556] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 99.588881][ T2556] ? __create_object (mm/kmemleak.c:771) 
[ 99.589174][ T2556] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 99.589468][ T2556] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 99.589768][ T2556] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 99.590129][ T2556] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 99.590428][ T2556] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 99.590738][ T2556] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 99.591033][ T2556] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.591330][ T2556] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.591631][ T2556] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 99.591923][ T2556] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 99.592217][ T2556] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 99.592517][ T2556] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 99.592811][ T2556] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 99.593111][ T2556] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.593408][ T2556] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 99.593709][ T2556] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 99.594003][ T2556] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 99.594308][ T2556] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 99.594606][ T2556] ? 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) 
[ 99.594901][ T2556] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 99.595200][ T2556] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 99.595499][ T2556] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.595798][ T2556] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 99.596094][ T2556] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 99.596385][ T2556] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 99.596696][ T2556] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 99.596990][ T2556] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 99.597280][ T2556] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 99.597680][ T2556] ___sys_sendmsg (net/socket.c:2670) 
[ 99.597973][ T2556] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 99.598263][ T2556] ? __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) 
[ 99.598636][ T2556] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 99.598932][ T2556] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.599227][ T2556] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 99.599532][ T2556] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 99.599832][ T2556] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 99.600123][ T2556] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 99.600423][ T2556] __sys_sendmsg (net/socket.c:2700) 
[ 99.600723][ T2556] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 99.601085][ T2556] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 99.601393][ T2556] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 99.601698][ T2556] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 99.602003][ T2556] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   99.602363][ T2556] RIP: 0033:0x7faaaf8a01e7
[ 99.602674][ T2556] 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)
[   99.603729][ T2556] RSP: 002b:00007ffccb4eba38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   99.604174][ T2556] RAX: ffffffffffffffda RBX: 00007ffccb4ec160 RCX: 00007faaaf8a01e7
[   99.604617][ T2556] RDX: 0000000000000000 RSI: 00007ffccb4ebaa0 RDI: 0000000000000005
[   99.605055][ T2556] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   99.605497][ T2556] R10: 00007faaaf79dee8 R11: 0000000000000246 R12: 0000000000000003
[   99.605943][ T2556] R13: 00000000686e8041 R14: 0000000000499600 R15: 0000000000000000
| [  100.223171][ T2565] ------------[ cut here ]------------
| [ 100.223513][ T2565] WARNING: CPU: 2 PID: 2565 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) 
| [  100.224107][ T2565] Modules linked in:
| [  100.224967][ T2565] Tainted: [W]=WARN
[  100.225205][ T2565] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.225595][ T2565] 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) 
[ 100.225916][ T2565] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 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 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  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
[  100.226993][ T2565] RSP: 0018:ffffc90003de6f60 EFLAGS: 00010246
[  100.227381][ T2565] RAX: 0000000000000000 RBX: ffff88800542a000 RCX: 0000000000000001
[  100.227849][ T2565] RDX: 0000000000000000 RSI: ffffffff96910751 RDI: ffffffff96058280
[  100.228306][ T2565] RBP: ffffc90003de7050 R08: 0000000000000000 R09: 0000000000000000
[  100.228769][ T2565] R10: ffffc90003de7080 R11: ffffffff9738d1e0 R12: 1ffff920007bcdf0
[  100.229219][ T2565] R13: 00000000000005dc R14: ffffc90003de7080 R15: ffff88800542af48
[  100.229684][ T2565] FS:  00007ff137021800(0000) GS:ffff8880d4099000(0000) knlGS:0000000000000000
[  100.230215][ T2565] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.230610][ T2565] CR2: 00000000004e6e10 CR3: 0000000011cdb005 CR4: 0000000000772ef0
[  100.231068][ T2565] PKRU: 55555554
[  100.231300][ T2565] Call Trace:
[  100.231545][ T2565]  <TASK>
[ 100.231707][ T2565] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 100.232014][ T2565] ? __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) 
[ 100.232398][ T2565] ? br_del_if (net/bridge/br_if.c:742) 
[ 100.232658][ T2565] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 100.232969][ T2565] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 100.233273][ T2565] ? netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 100.233592][ T2565] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 100.233898][ T2565] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 100.234201][ T2565] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 100.234519][ T2565] ? ___sys_sendmsg (net/socket.c:2670) 
[ 100.234831][ T2565] ? __sys_sendmsg (net/socket.c:2700) 
[ 100.235134][ T2565] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 100.235439][ T2565] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 100.235825][ T2565] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.236142][ T2565] netif_set_mtu (net/core/dev.c:9652) 
[ 100.236445][ T2565] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 100.236779][ T2565] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 100.237015][ T2565] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 100.237332][ T2565] br_del_if (net/bridge/br_if.c:743) 
[ 100.237582][ T2565] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 100.237902][ T2565] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 100.238206][ T2565] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 100.238527][ T2565] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 100.238836][ T2565] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 100.239220][ T2565] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 100.239539][ T2565] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 100.239845][ T2565] ? __kernel_text_address (kernel/extable.c:79) 
[ 100.240154][ T2565] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.240461][ T2565] ? __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) 
[ 100.240779][ T2565] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 100.241155][ T2565] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.241463][ T2565] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.241785][ T2565] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 100.242090][ T2565] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 100.242397][ T2565] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.242715][ T2565] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 100.243019][ T2565] ? __create_object (mm/kmemleak.c:771) 
[ 100.243326][ T2565] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 100.243656][ T2565] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 100.243964][ T2565] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 100.244342][ T2565] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 100.244668][ T2565] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 100.244980][ T2565] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 100.245287][ T2565] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.245610][ T2565] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.245919][ T2565] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 100.246224][ T2565] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 100.246546][ T2565] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 100.246851][ T2565] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 100.247159][ T2565] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 100.247468][ T2565] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.247797][ T2565] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 100.248103][ T2565] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 100.248416][ T2565] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 100.248741][ T2565] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 100.249052][ T2565] ? 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) 
[ 100.249359][ T2565] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 100.249680][ T2565] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 100.249986][ T2565] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.250298][ T2565] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 100.250616][ T2565] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 100.250924][ T2565] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 100.251242][ T2565] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 100.251563][ T2565] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 100.251866][ T2565] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 100.252255][ T2565] ___sys_sendmsg (net/socket.c:2670) 
[ 100.252566][ T2565] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 100.252870][ T2565] ? __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) 
[ 100.253246][ T2565] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 100.253571][ T2565] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.253881][ T2565] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 100.254196][ T2565] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 100.254513][ T2565] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 100.254820][ T2565] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 100.255131][ T2565] __sys_sendmsg (net/socket.c:2700) 
[ 100.255434][ T2565] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 100.255824][ T2565] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 100.256144][ T2565] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 100.256450][ T2565] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 100.256766][ T2565] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.257142][ T2565] RIP: 0033:0x7ff1371ee1e7
[ 100.257456][ T2565] 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)
[  100.258539][ T2565] RSP: 002b:00007fff776207f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  100.258993][ T2565] RAX: ffffffffffffffda RBX: 00007fff77620f20 RCX: 00007ff1371ee1e7
[  100.259443][ T2565] RDX: 0000000000000000 RSI: 00007fff77620860 RDI: 0000000000000005
[  100.259909][ T2565] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  100.260360][ T2565] R10: 00007ff1370ebee8 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