======================================
| [   16.488028][  T299] br: port 1(d1) entered forwarding state
| [   16.490417][  T299] ------------[ cut here ]------------
| [ 16.490803][ T299] WARNING: CPU: 2 PID: 299 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) 
| [   16.491576][  T299] Modules linked in:
[   16.492850][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.493441][ T299] 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) 
[ 16.493828][ T299] 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
[   16.494957][  T299] RSP: 0018:ffffc90000b86ef0 EFLAGS: 00010246
[   16.495364][  T299] RAX: 0000000000000000 RBX: ffff888005d22000 RCX: 0000000000000001
[   16.495845][  T299] RDX: 0000000000000000 RSI: ffffffffb1310751 RDI: ffffffffb0a58280
[   16.496326][  T299] RBP: ffffc90000b86fd8 R08: 0000000000000000 R09: 0000000000000000
[   16.496796][  T299] R10: ffffc90000b87008 R11: ffffffffb26ceab8 R12: 1ffff92000170de2
[   16.497296][  T299] R13: 00000000000005dc R14: ffffc90000b87008 R15: ffff888005d22f48
[   16.497754][  T299] FS:  00007ff08a9e6800(0000) GS:ffff8880b9699000(0000) knlGS:0000000000000000
[   16.499811][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.500256][  T299] CR2: 00000000004e6e08 CR3: 00000000026c9002 CR4: 0000000000772ef0
[   16.500723][  T299] PKRU: 55555554
[   16.500977][  T299] Call Trace:
[   16.501226][  T299]  <TASK>
[ 16.501399][ T299] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 16.501717][ T299] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.502075][ T299] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.502461][ T299] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.502776][ T299] netif_set_mtu (net/core/dev.c:9652) 
[ 16.503124][ T299] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 16.503451][ T299] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 16.503841][ T299] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 16.504120][ T299] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 16.504437][ T299] br_add_if (net/bridge/br_if.c:697) 
[ 16.504687][ T299] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 16.504994][ T299] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 16.505339][ T299] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 16.505653][ T299] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 16.506041][ T299] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 16.506403][ T299] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 16.506711][ T299] ? __kernel_text_address (kernel/extable.c:79) 
[ 16.507019][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.507386][ T299] ? __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) 
[ 16.507699][ T299] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 16.508088][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.508416][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.508731][ T299] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 16.509037][ T299] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 16.509377][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.509687][ T299] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 16.509994][ T299] ? __create_object (mm/kmemleak.c:771) 
[ 16.510345][ T299] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 16.510658][ T299] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 16.510974][ T299] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.511396][ T299] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 16.511716][ T299] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 16.512034][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.512370][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.512686][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.512994][ T299] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 16.513331][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.513643][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.513960][ T299] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 16.514319][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.514636][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.514953][ T299] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 16.515274][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.515602][ T299] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 16.515922][ T299] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 16.516248][ T299] ? 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) 
[ 16.516574][ T299] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 16.516885][ T299] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 16.517223][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.517558][ T299] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 16.517869][ T299] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 16.518205][ T299] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 16.518550][ T299] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 16.518865][ T299] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 16.519186][ T299] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 16.519597][ T299] ___sys_sendmsg (net/socket.c:2670) 
[ 16.519901][ T299] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 16.520223][ T299] ? __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) 
[ 16.520621][ T299] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 16.520942][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.521270][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.521600][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.521908][ T299] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 16.522230][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.522562][ T299] __sys_sendmsg (net/socket.c:2700) 
[ 16.522880][ T299] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 16.523281][ T299] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 16.523622][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.523932][ T299] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.524258][ T299] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.524652][  T299] RIP: 0033:0x7ff08abb31e7
[ 16.524978][ T299] 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)
[   16.526109][  T299] RSP: 002b:00007ffdc2f30948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   16.526574][  T299] RAX: ffffffffffffffda RBX: 00007ffdc2f31070 RCX: 00007ff08abb31e7
[   16.527064][  T299] RDX: 0000000000000000 RSI: 00007ffdc2f309b0 RDI: 0000000000000005
[   16.527535][  T299] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   16.528015][  T299] R10: 00000000037a8910 R11: 0000000000000246 R12: 0000000000000004
[   16.528491][  T299] R13: 00000000686e734e R14: 0000000000499600 R15: 0000000000000000
| [   17.573684][  T328] ------------[ cut here ]------------
| [ 17.573990][ T328] WARNING: CPU: 0 PID: 328 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) 
| [   17.574671][  T328] Modules linked in:
| [   17.576531][  T328] Tainted: [W]=WARN
[   17.576787][  T328] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.577210][ T328] 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) 
[ 17.577544][ T328] 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
[   17.578692][  T328] RSP: 0018:ffffc90000cd6ef0 EFLAGS: 00010246
[   17.579109][  T328] RAX: 0000000000000000 RBX: ffff888005d22000 RCX: 0000000000000001
[   17.579592][  T328] RDX: 0000000000000000 RSI: ffffffffb1310751 RDI: ffffffffb0a58280
[   17.580084][  T328] RBP: ffffc90000cd6fd8 R08: 0000000000000000 R09: 0000000000000000
[   17.580567][  T328] R10: ffffc90000cd7008 R11: ffffffffb26ceab8 R12: 1ffff9200019ade2
[   17.581045][  T328] R13: 00000000000005dc R14: ffffc90000cd7008 R15: ffff888005d22f48
[   17.581534][  T328] FS:  00007f03c8a5f800(0000) GS:ffff8880b9599000(0000) knlGS:0000000000000000
[   17.582104][  T328] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.582513][  T328] CR2: 00000000004e6e08 CR3: 000000000bbf9003 CR4: 0000000000772ef0
[   17.583004][  T328] PKRU: 55555554
[   17.583264][  T328] Call Trace:
[   17.583519][  T328]  <TASK>
[ 17.583691][ T328] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 17.584023][ T328] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 17.584380][ T328] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 17.584800][ T328] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.585142][ T328] netif_set_mtu (net/core/dev.c:9652) 
[ 17.585479][ T328] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 17.585831][ T328] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 17.586281][ T328] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 17.586530][ T328] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 17.586856][ T328] br_add_if (net/bridge/br_if.c:697) 
[ 17.587169][ T328] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 17.587501][ T328] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 17.587850][ T328] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 17.588187][ T328] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 17.588616][ T328] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 17.588951][ T328] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 17.589287][ T328] ? __kernel_text_address (kernel/extable.c:79) 
[ 17.589622][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.589954][ T328] ? __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) 
[ 17.590304][ T328] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 17.590708][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.591045][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.591420][ T328] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 17.591739][ T328] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 17.592094][ T328] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.592415][ T328] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 17.592731][ T328] ? __create_object (mm/kmemleak.c:771) 
[ 17.593046][ T328] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 17.593386][ T328] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 17.593712][ T328] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.594114][ T328] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 17.594481][ T328] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 17.594792][ T328] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.595101][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.595404][ T328] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.595703][ T328] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 17.596002][ T328] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.596309][ T328] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.596624][ T328] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 17.596920][ T328] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.597268][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.597589][ T328] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 17.597901][ T328] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.598221][ T328] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 17.598529][ T328] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 17.598844][ T328] ? 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) 
[ 17.599161][ T328] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 17.599460][ T328] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 17.599752][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.600086][ T328] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 17.600388][ T328] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 17.600682][ T328] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 17.600990][ T328] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 17.601340][ T328] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 17.601662][ T328] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 17.602076][ T328] ___sys_sendmsg (net/socket.c:2670) 
[ 17.602397][ T328] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 17.602723][ T328] ? __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) 
[ 17.603128][ T328] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 17.603470][ T328] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.603808][ T328] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.604163][ T328] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.604480][ T328] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 17.604809][ T328] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.605140][ T328] __sys_sendmsg (net/socket.c:2700) 
[ 17.605469][ T328] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 17.605862][ T328] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 17.606211][ T328] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.606552][ T328] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 17.606888][ T328] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   17.607305][  T328] RIP: 0033:0x7f03c8c2c1e7
[ 17.607669][ T328] 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)
[   17.608815][  T328] RSP: 002b:00007ffc04925c28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.609308][  T328] RAX: ffffffffffffffda RBX: 00007ffc04926350 RCX: 00007f03c8c2c1e7
[   17.609795][  T328] RDX: 0000000000000000 RSI: 00007ffc04925c90 RDI: 0000000000000005
[   17.610299][  T328] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   17.610792][  T328] R10: 0000000016b9b910 R11: 0000000000000246 R12: 0000000000000004
[   17.611303][  T328] R13: 00000000686e7350 R14: 0000000000499600 R15: 0000000000000000
| [   18.643155][  T356] ------------[ cut here ]------------
| [ 18.643461][ T356] WARNING: CPU: 0 PID: 356 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   18.644066][  T356] Modules linked in:
| [   18.644906][  T356] Tainted: [W]=WARN
[   18.645141][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.645510][ T356] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 18.645817][ T356] 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
[   18.646918][  T356] RSP: 0018:ffffc90000d86ef0 EFLAGS: 00010246
[   18.647320][  T356] RAX: 0000000000000000 RBX: ffff888005d22000 RCX: 0000000000000001
[   18.647762][  T356] RDX: 0000000000000000 RSI: ffffffffb1310751 RDI: ffffffffb0a58280
[   18.648231][  T356] RBP: ffffc90000d86fd8 R08: 0000000000000000 R09: 0000000000000000
[   18.648695][  T356] R10: ffffc90000d87008 R11: ffffffffb26ceab8 R12: 1ffff920001b0de2
[   18.649157][  T356] R13: 00000000000005dc R14: ffffc90000d87008 R15: ffff888005d22f48
[   18.649604][  T356] FS:  00007f1bcc1f8800(0000) GS:ffff8880b9599000(0000) knlGS:0000000000000000
[   18.650138][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.650515][  T356] CR2: 00000000004e6e08 CR3: 000000000b3a3001 CR4: 0000000000772ef0
[   18.650969][  T356] PKRU: 55555554
[   18.651205][  T356] Call Trace:
[   18.651427][  T356]  <TASK>
[ 18.651587][ T356] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.651891][ T356] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.652200][ T356] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.652576][ T356] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.652883][ T356] netif_set_mtu (net/core/dev.c:9652) 
[ 18.653191][ T356] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.653497][ T356] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) 
[ 18.653868][ T356] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.654103][ T356] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 18.654407][ T356] br_add_if (net/bridge/br_if.c:697) 
[ 18.654642][ T356] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 18.654937][ T356] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 18.655248][ T356] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.655553][ T356] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.655952][ T356] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.656275][ T356] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.656586][ T356] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.656897][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.657230][ T356] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 18.657557][ T356] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.657946][ T356] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.658272][ T356] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.658581][ T356] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.658896][ T356] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.659219][ T356] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.659532][ T356] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.659844][ T356] ? __create_object (mm/kmemleak.c:771) 
[ 18.660172][ T356] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.660485][ T356] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.660800][ T356] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.661197][ T356] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.661514][ T356] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.661830][ T356] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.662150][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.662467][ T356] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.662786][ T356] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.663153][ T356] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.663468][ T356] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.663777][ T356] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.664095][ T356] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.664412][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.664730][ T356] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.665063][ T356] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.665377][ T356] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.665746][ T356] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.666077][ T356] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 18.666390][ T356] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.666707][ T356] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.667018][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.667362][ T356] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.667679][ T356] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.667992][ T356] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.668320][ T356] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.668635][ T356] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.668946][ T356] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.669359][ T356] ___sys_sendmsg (net/socket.c:2670) 
[ 18.669676][ T356] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.669988][ T356] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 18.670388][ T356] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.670701][ T356] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.671018][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.671347][ T356] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.671660][ T356] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.671975][ T356] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.672309][ T356] __sys_sendmsg (net/socket.c:2700) 
[ 18.672621][ T356] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.673008][ T356] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.673345][ T356] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.673659][ T356] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.673976][ T356] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.674372][  T356] RIP: 0033:0x7f1bcc3c51e7
[ 18.674702][ T356] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   18.675830][  T356] RSP: 002b:00007fff84bbafe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.676312][  T356] RAX: ffffffffffffffda RBX: 00007fff84bbb710 RCX: 00007f1bcc3c51e7
[   18.676788][  T356] RDX: 0000000000000000 RSI: 00007fff84bbb050 RDI: 0000000000000005
[   18.677275][  T356] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.677746][  T356] R10: 000000001700d910 R11: 0000000000000246 R12: 0000000000000004
[   18.678220][  T356] R13: 00000000686e7351 R14: 0000000000499600 R15: 0000000000000000
| [  109.096021][ T2550] ------------[ cut here ]------------
| [ 109.096357][ T2550] WARNING: CPU: 0 PID: 2550 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) 
| [  109.096946][ T2550] Modules linked in:
| [  109.097804][ T2550] Tainted: [W]=WARN
[  109.098031][ T2550] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 109.098924][ T2550] 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) 
[ 109.099246][ T2550] 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
[  109.100324][ T2550] RSP: 0018:ffffc90003b86f60 EFLAGS: 00010246
[  109.100709][ T2550] RAX: 0000000000000000 RBX: ffff888005d22000 RCX: 0000000000000001
[  109.101171][ T2550] RDX: 0000000000000000 RSI: ffffffffb1310751 RDI: ffffffffb0a58280
[  109.101624][ T2550] RBP: ffffc90003b87050 R08: 0000000000000000 R09: 0000000000000000
[  109.102088][ T2550] R10: ffffc90003b87080 R11: ffffffffad400130 R12: 1ffff92000770df0
[  109.102540][ T2550] R13: 00000000000005dc R14: ffffc90003b87080 R15: ffff888005d22f48
[  109.102996][ T2550] FS:  00007fea21db8800(0000) GS:ffff8880b9599000(0000) knlGS:0000000000000000
[  109.103539][ T2550] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  109.103934][ T2550] CR2: 00000000004e6e20 CR3: 00000000114a2003 CR4: 0000000000772ef0
[  109.104431][ T2550] PKRU: 55555554
[  109.104672][ T2550] Call Trace:
[  109.104915][ T2550]  <TASK>
[ 109.105085][ T2550] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 109.105407][ T2550] ? __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) 
[ 109.105821][ T2550] ? br_del_if (net/bridge/br_if.c:742) 
[ 109.106090][ T2550] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 109.106414][ T2550] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 109.106731][ T2550] ? netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 109.107090][ T2550] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 109.107421][ T2550] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 109.107742][ T2550] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 109.108074][ T2550] ? ___sys_sendmsg (net/socket.c:2670) 
[ 109.108398][ T2550] ? __sys_sendmsg (net/socket.c:2700) 
[ 109.108714][ T2550] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 109.109032][ T2550] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 109.109445][ T2550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.109779][ T2550] netif_set_mtu (net/core/dev.c:9652) 
[ 109.110108][ T2550] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 109.110441][ T2550] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 109.110690][ T2550] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 109.111006][ T2550] br_del_if (net/bridge/br_if.c:743) 
[ 109.111255][ T2550] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 109.111571][ T2550] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 109.111886][ T2550] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 109.112221][ T2550] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 109.112540][ T2550] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 109.112938][ T2550] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 109.113272][ T2550] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 109.113588][ T2550] ? __kernel_text_address (kernel/extable.c:79) 
[ 109.113908][ T2550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.114244][ T2550] ? __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) 
[ 109.114564][ T2550] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 109.114953][ T2550] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 109.115289][ T2550] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 109.115605][ T2550] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 109.115922][ T2550] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 109.116249][ T2550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.116565][ T2550] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 109.116881][ T2550] ? __create_object (mm/kmemleak.c:771) 
[ 109.117227][ T2550] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 109.117549][ T2550] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 109.117869][ T2550] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 109.118270][ T2550] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 109.118598][ T2550] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 109.118925][ T2550] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 109.119257][ T2550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.119580][ T2550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.119897][ T2550] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 109.120221][ T2550] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 109.120547][ T2550] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 109.120859][ T2550] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 109.121186][ T2550] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 109.121508][ T2550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.121838][ T2550] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 109.122164][ T2550] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 109.122488][ T2550] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 109.122827][ T2550] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 109.123152][ T2550] ? 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) 
[ 109.123468][ T2550] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 109.123789][ T2550] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 109.124110][ T2550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.124430][ T2550] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 109.124748][ T2550] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 109.125084][ T2550] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 109.125405][ T2550] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 109.125719][ T2550] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 109.126031][ T2550] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 109.126446][ T2550] ___sys_sendmsg (net/socket.c:2670) 
[ 109.126761][ T2550] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 109.127111][ T2550] ? __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) 
[ 109.127528][ T2550] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 109.127846][ T2550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.128181][ T2550] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.128504][ T2550] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.128820][ T2550] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 109.129144][ T2550] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 109.129466][ T2550] __sys_sendmsg (net/socket.c:2700) 
[ 109.129787][ T2550] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 109.130190][ T2550] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 109.130521][ T2550] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 109.130835][ T2550] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 109.131159][ T2550] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  109.131550][ T2550] RIP: 0033:0x7fea21f851e7
[ 109.131879][ T2550] 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)
[  109.133019][ T2550] RSP: 002b:00007ffcc81b24a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  109.133534][ T2550] RAX: ffffffffffffffda RBX: 00007ffcc81b2bd0 RCX: 00007fea21f851e7
[  109.134007][ T2550] RDX: 0000000000000000 RSI: 00007ffcc81b2510 RDI: 0000000000000005
[  109.134497][ T2550] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  109.134967][ T2550] R10: 00007fea21e82ee8 R11: 0000000000000246 R12: 0000000000000003
[  109.135448][ T2550] R13: 00000000686e73ab R14: 0000000000499600 R15: 0000000000000000
| [  109.929681][ T2558] ------------[ cut here ]------------
| [ 109.930007][ T2558] WARNING: CPU: 0 PID: 2558 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) 
| [  109.931107][ T2558] Modules linked in:
| [  109.931943][ T2558] Tainted: [W]=WARN
[  109.932179][ T2558] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 109.932556][ T2558] 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) 
[ 109.932863][ T2558] 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
[  109.933927][ T2558] RSP: 0018:ffffc90003c06f60 EFLAGS: 00010246
[  109.934330][ T2558] RAX: 0000000000000000 RBX: ffff888005d22000 RCX: 0000000000000001
[  109.934776][ T2558] RDX: 0000000000000000 RSI: ffffffffb1310751 RDI: ffffffffb0a58280
[  109.935226][ T2558] RBP: ffffc90003c07050 R08: 0000000000000000 R09: 0000000000000000
[  109.935670][ T2558] R10: ffffc90003c07080 R11: ffffffffb1d8d1e0 R12: 1ffff92000780df0
[  109.936127][ T2558] R13: 00000000000005dc R14: ffffc90003c07080 R15: ffff888005d22f48
[  109.936575][ T2558] FS:  00007f553ee64800(0000) GS:ffff8880b9599000(0000) knlGS:0000000000000000
[  109.937111][ T2558] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  109.937504][ T2558] CR2: 00000000004e6e18 CR3: 0000000011208005 CR4: 0000000000772ef0
[  109.937950][ T2558] PKRU: 55555554
[  109.938180][ T2558] Call Trace:
[  109.938409][ T2558]  <TASK>
[ 109.938561][ T2558] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 109.938861][ T2558] ? __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) 
[ 109.939238][ T2558] ? br_del_if (net/bridge/br_if.c:742) 
[ 109.939464][ T2558] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 109.939758][ T2558] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 109.940060][ T2558] ? netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 109.940367][ T2558] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 109.940680][ T2558] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 109.940993][ T2558] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 109.941313][ T2558] ? ___sys_sendmsg (net/socket.c:2670) 
[ 109.941627][ T2558] ? __sys_sendmsg (net/socket.c:2700) 
[ 109.941938][ T2558] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 109.942262][ T2558] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 109.942655][ T2558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.942977][ T2558] netif_set_mtu (net/core/dev.c:9652) 
[ 109.943308][ T2558] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 109.943638][ T2558] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 109.943877][ T2558] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 109.944200][ T2558] br_del_if (net/bridge/br_if.c:743) 
[ 109.944436][ T2558] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 109.944749][ T2558] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 109.945066][ T2558] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 109.945388][ T2558] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 109.945708][ T2558] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 109.946112][ T2558] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 109.946411][ T2558] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 109.946712][ T2558] ? __kernel_text_address (kernel/extable.c:79) 
[ 109.947010][ T2558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.947333][ T2558] ? __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) 
[ 109.947639][ T2558] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 109.948006][ T2558] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 109.948312][ T2558] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 109.948610][ T2558] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 109.948905][ T2558] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 109.949213][ T2558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.949517][ T2558] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 109.949811][ T2558] ? __create_object (mm/kmemleak.c:771) 
[ 109.950127][ T2558] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 109.950431][ T2558] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 109.950736][ T2558] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 109.951114][ T2558] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 109.951416][ T2558] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 109.951724][ T2558] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 109.952022][ T2558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.952338][ T2558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.952641][ T2558] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 109.952935][ T2558] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 109.953244][ T2558] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 109.953547][ T2558] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 109.953846][ T2558] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 109.954155][ T2558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.954458][ T2558] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 109.954761][ T2558] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 109.955068][ T2558] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 109.955377][ T2558] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 109.955672][ T2558] ? 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) 
[ 109.955968][ T2558] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 109.956274][ T2558] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 109.956570][ T2558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.956875][ T2558] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 109.957215][ T2558] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 109.957521][ T2558] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 109.957828][ T2558] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 109.958137][ T2558] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 109.958436][ T2558] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 109.958815][ T2558] ___sys_sendmsg (net/socket.c:2670) 
[ 109.959124][ T2558] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 109.959423][ T2558] ? __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) 
[ 109.959795][ T2558] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 109.960106][ T2558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.960406][ T2558] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 109.960706][ T2558] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 109.961003][ T2558] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 109.961319][ T2558] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 109.961630][ T2558] __sys_sendmsg (net/socket.c:2700) 
[ 109.961925][ T2558] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 109.962305][ T2558] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 109.962614][ T2558] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 109.962913][ T2558] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 109.963219][ T2558] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  109.963591][ T2558] RIP: 0033:0x7f553f0311e7
[ 109.963905][ T2558] 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)
[  109.964972][ T2558] RSP: 002b:00007fff66153668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  109.965436][ T2558] RAX: ffffffffffffffda RBX: 00007fff66153d90 RCX: 00007f553f0311e7
[  109.965890][ T2558] RDX: 0000000000000000 RSI: 00007fff661536d0 RDI: 0000000000000005
[  109.966343][ T2558] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  109.966785][ T2558] R10: 00007f553ef2eee8 R11: 0000000000000246 R12: 0000000000000003
[  109.967254][ T2558] R13: 00000000686e73ac R14: 0000000000499600 R15: 0000000000000000
| [  110.663882][ T2567] ------------[ cut here ]------------
| [ 110.664208][ T2567] WARNING: CPU: 3 PID: 2567 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) 
| [  110.664804][ T2567] Modules linked in:
| [  110.665986][ T2567] Tainted: [W]=WARN
[  110.666224][ T2567] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 110.666602][ T2567] 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) 
[ 110.666911][ T2567] 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
[  110.668000][ T2567] RSP: 0018:ffffc90003c66f60 EFLAGS: 00010246
[  110.668387][ T2567] RAX: 0000000000000000 RBX: ffff888005d22000 RCX: 0000000000000001
[  110.668834][ T2567] RDX: 0000000000000000 RSI: ffffffffb1310751 RDI: ffffffffb0a58280
[  110.669290][ T2567] RBP: ffffc90003c67050 R08: 0000000000000000 R09: 0000000000000000
[  110.669739][ T2567] R10: ffffc90003c67080 R11: ffffffffb1d8d1e0 R12: 1ffff9200078cdf0
[  110.670190][ T2567] R13: 00000000000005dc R14: ffffc90003c67080 R15: ffff888005d22f48
[  110.670634][ T2567] FS:  00007efeb0bef800(0000) GS:ffff8880b9719000(0000) knlGS:0000000000000000
[  110.671159][ T2567] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  110.671534][ T2567] CR2: 00000000004e6e10 CR3: 00000000111df005 CR4: 0000000000772ef0
[  110.671990][ T2567] PKRU: 55555554
[  110.672222][ T2567] Call Trace:
[  110.672450][ T2567]  <TASK>
[ 110.672601][ T2567] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 110.672901][ T2567] ? __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) 
[ 110.673281][ T2567] ? br_del_if (net/bridge/br_if.c:742) 
[ 110.673510][ T2567] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 110.673806][ T2567] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 110.674113][ T2567] ? netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 110.674410][ T2567] ? netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 110.674704][ T2567] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 110.675000][ T2567] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 110.675306][ T2567] ? ___sys_sendmsg (net/socket.c:2670) 
[ 110.675609][ T2567] ? __sys_sendmsg (net/socket.c:2700) 
[ 110.675904][ T2567] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 110.676229][ T2567] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 110.676604][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 110.676912][ T2567] netif_set_mtu (net/core/dev.c:9652) 
[ 110.677229][ T2567] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 110.677548][ T2567] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 110.677776][ T2567] br_mtu_auto_adjust (net/bridge/br_if.c:525) 
[ 110.678084][ T2567] br_del_if (net/bridge/br_if.c:743) 
[ 110.678309][ T2567] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 110.678613][ T2567] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 110.678910][ T2567] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 110.679224][ T2567] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 110.679527][ T2567] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 110.679903][ T2567] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 110.680206][ T2567] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 110.680505][ T2567] ? __kernel_text_address (kernel/extable.c:79) 
[ 110.680812][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 110.681118][ T2567] ? __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) 
[ 110.681417][ T2567] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 110.681787][ T2567] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 110.682095][ T2567] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 110.682390][ T2567] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 110.682688][ T2567] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 110.682992][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 110.683296][ T2567] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 110.683590][ T2567] ? __create_object (mm/kmemleak.c:771) 
[ 110.683887][ T2567] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 110.684193][ T2567] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 110.684493][ T2567] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 110.684869][ T2567] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 110.685182][ T2567] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 110.685493][ T2567] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 110.685790][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 110.686101][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 110.686397][ T2567] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 110.686692][ T2567] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 110.686989][ T2567] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 110.687299][ T2567] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 110.687598][ T2567] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 110.687908][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 110.688224][ T2567] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 110.688524][ T2567] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 110.688823][ T2567] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 110.689140][ T2567] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 110.689434][ T2567] ? 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) 
[ 110.689733][ T2567] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 110.690039][ T2567] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 110.690346][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 110.690647][ T2567] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 110.690948][ T2567] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 110.691252][ T2567] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 110.691558][ T2567] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 110.691856][ T2567] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 110.692168][ T2567] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 110.692550][ T2567] ___sys_sendmsg (net/socket.c:2670) 
[ 110.692845][ T2567] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 110.693146][ T2567] ? __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) 
[ 110.693517][ T2567] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 110.693815][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 110.694123][ T2567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 110.694434][ T2567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 110.694734][ T2567] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 110.695031][ T2567] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 110.695344][ T2567] __sys_sendmsg (net/socket.c:2700) 
[ 110.695636][ T2567] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 110.696003][ T2567] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 110.696318][ T2567] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 110.696622][ T2567] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 110.696920][ T2567] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  110.697305][ T2567] RIP: 0033:0x7efeb0dbc1e7
[ 110.697616][ T2567] 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)
[  110.698678][ T2567] RSP: 002b:00007ffd228f3e08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  110.699139][ T2567] RAX: ffffffffffffffda RBX: 00007ffd228f4530 RCX: 00007efeb0dbc1e7
[  110.699585][ T2567] RDX: 0000000000000000 RSI: 00007ffd228f3e70 RDI: 0000000000000005
[  110.700028][ T2567] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  110.700479][ T2567] R10: 00007efeb0cb9ee8 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