======================================
| [   16.593571][  T276] veth1: entered promiscuous mode
| [   16.595996][  T276] ------------[ cut here ]------------
| [ 16.596352][ T276] WARNING: CPU: 1 PID: 276 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) 
| [   16.597692][  T276] Modules linked in: bridge stp llc veth
[   16.598710][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.599118][ T276] 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) 
[ 16.599451][ T276] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   16.600602][  T276] RSP: 0018:ffffc90000556ef0 EFLAGS: 00010246
[   16.601009][  T276] RAX: 0000000000000000 RBX: ffff888004dda000 RCX: 0000000000000001
[   16.601496][  T276] RDX: 0000000000000000 RSI: ffffffff94e9b941 RDI: ffffffff946555e0
[   16.602001][  T276] RBP: ffffc90000556fe0 R08: 0000000000000000 R09: 0000000000000000
[   16.602487][  T276] R10: ffffc90000557010 R11: ffffffff95ca8918 R12: 1ffff920000aade2
[   16.602980][  T276] R13: 00000000000005dc R14: ffffc90000557010 R15: ffff888004ddaf08
[   16.603467][  T276] FS:  00007fa213220800(0000) GS:ffff88809f337000(0000) knlGS:0000000000000000
[   16.604036][  T276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.604444][  T276] CR2: 00000000004e5aa8 CR3: 000000000bbf5004 CR4: 0000000000772ef0
[   16.605112][  T276] PKRU: 55555554
[   16.605361][  T276] Call Trace:
[   16.605614][  T276]  <TASK>
[ 16.605785][ T276] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 16.606112][ T276] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.606443][ T276] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.606780][ T276] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.607192][ T276] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.607518][ T276] netif_set_mtu (net/core/dev.c:9652) 
[ 16.607852][ T276] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 16.608185][ T276] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 16.608644][ T276] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 16.608895][ T276] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 16.609334][ T276] br_add_if (net/bridge/br_if.c:697) bridge 
[ 16.609713][ T276] do_set_master (net/core/rtnetlink.c:2948) 
[ 16.610042][ T276] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 16.610375][ T276] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 16.610787][ T276] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 16.611110][ T276] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 16.611432][ T276] ? __kernel_text_address (kernel/extable.c:79) 
[ 16.611793][ T276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.612124][ T276] ? __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) 
[ 16.612443][ T276] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 16.612850][ T276] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.613174][ T276] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.613497][ T276] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 16.613828][ T276] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 16.614148][ T276] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.614465][ T276] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 16.614788][ T276] ? __create_object (mm/kmemleak.c:771) 
[ 16.615112][ T276] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 16.615429][ T276] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 16.615759][ T276] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.616157][ T276] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 16.616488][ T276] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 16.616823][ T276] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.617143][ T276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.617476][ T276] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.617805][ T276] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 16.618123][ T276] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.618441][ T276] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.618768][ T276] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 16.619095][ T276] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.619420][ T276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.619755][ T276] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 16.620078][ T276] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.620399][ T276] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 16.620739][ T276] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 16.621057][ T276] ? 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) 
[ 16.621379][ T276] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 16.621709][ T276] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 16.622025][ T276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.622349][ T276] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 16.622680][ T276] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 16.623001][ T276] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 16.623329][ T276] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 16.623667][ T276] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 16.623988][ T276] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 16.624400][ T276] ___sys_sendmsg (net/socket.c:2670) 
[ 16.624732][ T276] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 16.625053][ T276] ? __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) 
[ 16.625454][ T276] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 16.625788][ T276] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.626114][ T276] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.626442][ T276] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.626772][ T276] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 16.627094][ T276] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.627431][ T276] __sys_sendmsg (net/socket.c:2700) 
[ 16.627758][ T276] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 16.628155][ T276] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 16.628490][ T276] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.628824][ T276] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.629149][ T276] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.629545][  T276] RIP: 0033:0x7fa2133ed1e7
[ 16.629892][ T276] 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)
[   16.631184][  T276] RSP: 002b:00007ffdaf7bebf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   16.631682][  T276] RAX: ffffffffffffffda RBX: 00007ffdaf7bf320 RCX: 00007fa2133ed1e7
[   16.632164][  T276] RDX: 0000000000000000 RSI: 00007ffdaf7bec60 RDI: 0000000000000005
[   16.632659][  T276] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   16.633147][  T276] R10: 0000000033e63910 R11: 0000000000000246 R12: 0000000000000004
[   16.633636][  T276] R13: 00000000686e2304 R14: 0000000000499600 R15: 0000000000000000
| [   16.759859][  T278] ------------[ cut here ]------------
| [ 16.760285][ T278] WARNING: CPU: 3 PID: 278 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) 
| [   16.760919][  T278] Modules linked in: bridge stp llc veth
| [   16.761918][  T278] Tainted: [W]=WARN
[   16.762152][  T278] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.762533][ T278] 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) 
[ 16.762858][ T278] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   16.763960][  T278] RSP: 0018:ffffc90000606ef0 EFLAGS: 00010246
[   16.764347][  T278] RAX: 0000000000000000 RBX: ffff888004dda000 RCX: 0000000000000001
[   16.764810][  T278] RDX: 0000000000000000 RSI: ffffffff94e9b941 RDI: ffffffff946555e0
[   16.765272][  T278] RBP: ffffc90000606fe0 R08: 0000000000000000 R09: 0000000000000000
[   16.765754][  T278] R10: ffffc90000607010 R11: ffffffff95ca8918 R12: 1ffff920000c0de2
[   16.766212][  T278] R13: 00000000000005dc R14: ffffc90000607010 R15: ffff888004ddaf08
[   16.766678][  T278] FS:  00007fce8d163800(0000) GS:ffff88809f437000(0000) knlGS:0000000000000000
[   16.767237][  T278] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.767627][  T278] CR2: 00000000004e5ab8 CR3: 0000000002104001 CR4: 0000000000772ef0
[   16.768090][  T278] PKRU: 55555554
[   16.768338][  T278] Call Trace:
[   16.768572][  T278]  <TASK>
[ 16.768741][ T278] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 16.769048][ T278] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.769359][ T278] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.769674][ T278] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.770055][ T278] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.770364][ T278] netif_set_mtu (net/core/dev.c:9652) 
[ 16.770860][ T278] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 16.771185][ T278] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 16.771779][ T278] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 16.772014][ T278] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 16.772435][ T278] br_add_if (net/bridge/br_if.c:697) bridge 
[ 16.772814][ T278] do_set_master (net/core/rtnetlink.c:2948) 
[ 16.773126][ T278] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 16.773439][ T278] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 16.773830][ T278] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 16.774134][ T278] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 16.774436][ T278] ? __kernel_text_address (kernel/extable.c:79) 
[ 16.774754][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.775066][ T278] ? __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) 
[ 16.775374][ T278] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 16.775766][ T278] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.776074][ T278] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.776380][ T278] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 16.776710][ T278] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 16.777017][ T278] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.777328][ T278] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 16.777641][ T278] ? __create_object (mm/kmemleak.c:771) 
[ 16.777952][ T278] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 16.778265][ T278] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 16.778571][ T278] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.778962][ T278] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 16.779275][ T278] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 16.779588][ T278] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.779906][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.780243][ T278] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.780555][ T278] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 16.780870][ T278] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.781181][ T278] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 16.781486][ T278] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 16.781802][ T278] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.782115][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.782428][ T278] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 16.782758][ T278] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 16.783074][ T278] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 16.783394][ T278] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 16.783707][ T278] ? 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) 
[ 16.784014][ T278] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 16.784324][ T278] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 16.784639][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.784951][ T278] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 16.785266][ T278] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 16.785574][ T278] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 16.785895][ T278] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 16.786206][ T278] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 16.786511][ T278] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 16.786910][ T278] ___sys_sendmsg (net/socket.c:2670) 
[ 16.787224][ T278] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 16.787537][ T278] ? __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) 
[ 16.787927][ T278] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 16.788239][ T278] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.788551][ T278] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.788872][ T278] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.789180][ T278] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 16.789486][ T278] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.789812][ T278] __sys_sendmsg (net/socket.c:2700) 
[ 16.790118][ T278] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 16.790511][ T278] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 16.790843][ T278] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.791166][ T278] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 16.791473][ T278] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.791861][  T278] RIP: 0033:0x7fce8d3301e7
[ 16.792177][ T278] 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)
[   16.793304][  T278] RSP: 002b:00007ffe36391b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   16.793776][  T278] RAX: ffffffffffffffda RBX: 00007ffe36392240 RCX: 00007fce8d3301e7
[   16.794256][  T278] RDX: 0000000000000000 RSI: 00007ffe36391b80 RDI: 0000000000000005
[   16.794734][  T278] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   16.795188][  T278] R10: 000000001c3b3910 R11: 0000000000000246 R12: 0000000000000004


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