======================================
| [   15.540362][  T275] veth1: entered promiscuous mode
| [   15.542639][  T275] ------------[ cut here ]------------
| [ 15.542979][ T275] WARNING: CPU: 0 PID: 275 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) 
| [   15.543593][  T275] Modules linked in: bridge stp llc veth
[   15.545806][  T275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.546217][ T275] 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) 
[ 15.546548][ T275] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa 61 7b 00       	call   0x7b621b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   15.547827][  T275] RSP: 0018:ffffc90000546ef0 EFLAGS: 00010246
[   15.548241][  T275] RAX: 0000000000000000 RBX: ffff88800b85a000 RCX: 0000000000000001
[   15.548709][  T275] RDX: 0000000000000000 RSI: ffffffffac69b939 RDI: ffffffffabe555e0
[   15.549183][  T275] RBP: ffffc90000546fe0 R08: 0000000000000000 R09: 0000000000000000
[   15.549649][  T275] R10: ffffc90000547010 R11: ffffffffad4a8918 R12: 1ffff920000a8de2
[   15.550120][  T275] R13: 00000000000005dc R14: ffffc90000547010 R15: ffff88800b85af08
[   15.550587][  T275] FS:  00007f032830b800(0000) GS:ffff888080cb7000(0000) knlGS:0000000000000000
[   15.551134][  T275] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.551523][  T275] CR2: 00000000004e5aa8 CR3: 000000000ac96006 CR4: 0000000000772ef0
[   15.551997][  T275] PKRU: 55555554
[   15.552230][  T275] Call Trace:
[   15.552473][  T275]  <TASK>
[ 15.552647][ T275] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 15.552971][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.553289][ T275] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 15.553601][ T275] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.553992][ T275] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.554304][ T275] netif_set_mtu (net/core/dev.c:9652) 
[ 15.554617][ T275] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 15.554947][ T275] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 15.555382][ T275] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 15.555618][ T275] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 15.556059][ T275] br_add_if (net/bridge/br_if.c:697) bridge 
[ 15.556429][ T275] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 15.556747][ T275] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 15.557070][ T275] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 15.557463][ T275] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 15.557769][ T275] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 15.558088][ T275] ? __kernel_text_address (kernel/extable.c:79) 
[ 15.558400][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.558718][ T275] ? __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) 
[ 15.559037][ T275] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 15.559423][ T275] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.559733][ T275] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.560048][ T275] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 15.560361][ T275] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 15.560670][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.560987][ T275] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 15.561295][ T275] ? __create_object (mm/kmemleak.c:771) 
[ 15.561606][ T275] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 15.561928][ T275] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 15.562236][ T275] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.562622][ T275] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 15.562946][ T275] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 15.563260][ T275] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.563569][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.563897][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.564211][ T275] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 15.564518][ T275] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.564833][ T275] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.565156][ T275] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 15.565466][ T275] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.565779][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.566109][ T275] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 15.566423][ T275] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.566733][ T275] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 15.567062][ T275] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 15.567377][ T275] ? 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) 
[ 15.567692][ T275] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 15.568034][ T275] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 15.568345][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.568664][ T275] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 15.568991][ T275] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 15.569302][ T275] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 15.569621][ T275] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 15.569940][ T275] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 15.570247][ T275] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 15.570643][ T275] ___sys_sendmsg (net/socket.c:2670) 
[ 15.570956][ T275] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 15.571263][ T275] ? __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) 
[ 15.571644][ T275] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 15.571966][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.572278][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.572593][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.572909][ T275] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 15.573218][ T275] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.573533][ T275] __sys_sendmsg (net/socket.c:2700) 
[ 15.573840][ T275] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 15.574236][ T275] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 15.574557][ T275] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.574884][ T275] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.575193][ T275] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.575571][  T275] RIP: 0033:0x7f03284d81e7
[ 15.575900][ T275] 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)
[   15.577023][  T275] RSP: 002b:00007ffd4832ab68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   15.577491][  T275] RAX: ffffffffffffffda RBX: 00007ffd4832b290 RCX: 00007f03284d81e7
[   15.577964][  T275] RDX: 0000000000000000 RSI: 00007ffd4832abd0 RDI: 0000000000000005
[   15.578444][  T275] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   15.578917][  T275] R10: 000000003cbd6910 R11: 0000000000000246 R12: 0000000000000004
[   15.579376][  T275] R13: 00000000686e764b R14: 0000000000499600 R15: 0000000000000000
| [   15.719364][  T277] ------------[ cut here ]------------
| [ 15.719672][ T277] WARNING: CPU: 1 PID: 277 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) 
| [   15.721254][  T277] Modules linked in: bridge stp llc veth
| [   15.722232][  T277] Tainted: [W]=WARN
[   15.722467][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.722847][ T277] 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) 
[ 15.723194][ T277] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 fa 61 7b 00       	call   0x7b621b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   15.724297][  T277] RSP: 0018:ffffc90000536ef0 EFLAGS: 00010246
[   15.724682][  T277] RAX: 0000000000000000 RBX: ffff88800b85a000 RCX: 0000000000000001
[   15.725146][  T277] RDX: 0000000000000000 RSI: ffffffffac69b939 RDI: ffffffffabe555e0
[   15.725601][  T277] RBP: ffffc90000536fe0 R08: 0000000000000000 R09: 0000000000000000
[   15.726059][  T277] R10: ffffc90000537010 R11: ffffffffad4a8918 R12: 1ffff920000a6de2
[   15.726538][  T277] R13: 00000000000005dc R14: ffffc90000537010 R15: ffff88800b85af08
[   15.727002][  T277] FS:  00007fbd1829f800(0000) GS:ffff888080d37000(0000) knlGS:0000000000000000
[   15.727534][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.727934][  T277] CR2: 00000000004e5ab8 CR3: 000000000e03b004 CR4: 0000000000772ef0
[   15.728394][  T277] PKRU: 55555554
[   15.728620][  T277] Call Trace:
[   15.728850][  T277]  <TASK>
[ 15.729155][ T277] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 15.729460][ T277] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.729772][ T277] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 15.730215][ T277] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.730592][ T277] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.730916][ T277] netif_set_mtu (net/core/dev.c:9652) 
[ 15.731222][ T277] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 15.731535][ T277] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 15.731977][ T277] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 15.732221][ T277] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 15.732637][ T277] br_add_if (net/bridge/br_if.c:697) bridge 
[ 15.732993][ T277] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2949) 
[ 15.733302][ T277] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 15.733608][ T277] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 15.733999][ T277] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 15.734299][ T277] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 15.734600][ T277] ? __kernel_text_address (kernel/extable.c:79) 
[ 15.734914][ T277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.735220][ T277] ? __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) 
[ 15.735525][ T277] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 15.735917][ T277] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.736238][ T277] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.736539][ T277] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 15.736848][ T277] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 15.737157][ T277] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.737464][ T277] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 15.737763][ T277] ? __create_object (mm/kmemleak.c:771) 
[ 15.738075][ T277] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 15.738381][ T277] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 15.738683][ T277] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.739068][ T277] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 15.739402][ T277] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 15.739710][ T277] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.740030][ T277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.740346][ T277] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.740647][ T277] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 15.740954][ T277] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.741258][ T277] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.741571][ T277] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 15.741883][ T277] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.742189][ T277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.742496][ T277] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 15.742797][ T277] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.743109][ T277] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 15.743433][ T277] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 15.743737][ T277] ? 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) 
[ 15.744057][ T277] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 15.744366][ T277] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 15.744667][ T277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.744987][ T277] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 15.745293][ T277] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 15.745610][ T277] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 15.745929][ T277] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 15.746261][ T277] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 15.746563][ T277] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 15.746975][ T277] ___sys_sendmsg (net/socket.c:2670) 
[ 15.747275][ T277] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 15.747588][ T277] ? __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) 
[ 15.747981][ T277] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 15.748292][ T277] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.748597][ T277] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.748914][ T277] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.749215][ T277] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 15.749653][ T277] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.749973][ T277] __sys_sendmsg (net/socket.c:2700) 
[ 15.750273][ T277] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 15.750646][ T277] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 15.750971][ T277] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.751276][ T277] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.751583][ T277] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.751972][  T277] RIP: 0033:0x7fbd1846c1e7
[ 15.752292][ T277] 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)
[   15.753377][  T277] RSP: 002b:00007ffe81045bc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   15.753837][  T277] RAX: ffffffffffffffda RBX: 00007ffe810462f0 RCX: 00007fbd1846c1e7
[   15.754297][  T277] RDX: 0000000000000000 RSI: 00007ffe81045c30 RDI: 0000000000000005
[   15.754749][  T277] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   15.755233][  T277] R10: 0000000040048910 R11: 0000000000000246 R12: 0000000000000004


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