======================================
| [   20.143823][  T274] veth0: entered promiscuous mode
| [   20.157792][  T274] ------------[ cut here ]------------
| [ 20.158170][ T274] WARNING: CPU: 2 PID: 274 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   20.158867][  T274] Modules linked in: bridge stp llc veth
[   20.159877][  T274] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.160308][ T274] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 20.160662][ T274] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.161879][  T274] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[   20.162335][  T274] RAX: 0000000000000000 RBX: ffff888005182000 RCX: 0000000000000001
[   20.162855][  T274] RDX: 0000000000000000 RSI: ffffffffabc9f52e RDI: ffffffffab45a5a0
[   20.163371][  T274] RBP: ffffc900005d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.163875][  T274] R10: ffffc900005d7010 R11: ffffffffac1798a0 R12: 1ffff920000bade2
[   20.164387][  T274] R13: 00000000000005dc R14: ffffc900005d7010 R15: ffff888005182f08
[   20.164889][  T274] FS:  00007f24fa855800(0000) GS:ffff8880885a7000(0000) knlGS:0000000000000000
[   20.165480][  T274] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.165904][  T274] CR2: 00000000004e5aa0 CR3: 0000000006013005 CR4: 0000000000772ef0
[   20.166429][  T274] PKRU: 55555554
[   20.166701][  T274] Call Trace:
[   20.166958][  T274]  <TASK>
[ 20.167142][ T274] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.167496][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.167846][ T274] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.168314][ T274] netif_set_mtu (net/core/dev.c:9652) 
[ 20.168661][ T274] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.169018][ T274] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.169289][ T274] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.169756][ T274] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.170148][ T274] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.170509][ T274] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.170858][ T274] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.171290][ T274] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.171629][ T274] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.171971][ T274] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.172328][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.172674][ T274] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 20.173013][ T274] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.173438][ T274] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.173777][ T274] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.174112][ T274] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.174464][ T274] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.174807][ T274] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.175152][ T274] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.175493][ T274] ? __create_object (mm/kmemleak.c:771) 
[ 20.175831][ T274] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.176166][ T274] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.176517][ T274] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.176928][ T274] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.177285][ T274] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.177625][ T274] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.177968][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.178332][ T274] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.178681][ T274] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.179016][ T274] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.179366][ T274] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.179701][ T274] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.180038][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.180397][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.180740][ T274] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.181078][ T274] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.181424][ T274] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.181770][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.182113][ T274] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 20.182471][ T274] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.182816][ T274] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.183159][ T274] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.183510][ T274] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.183845][ T274] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.184187][ T274] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 20.184537][ T274] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.184877][ T274] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.185243][ T274] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.185675][ T274] ___sys_sendmsg (net/socket.c:2670) 
[ 20.186009][ T274] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.186369][ T274] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 20.186790][ T274] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.187131][ T274] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.187480][ T274] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.187825][ T274] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.188165][ T274] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.188509][ T274] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.188851][ T274] __sys_sendmsg (net/socket.c:2700) 
[ 20.189185][ T274] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.189604][ T274] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.189953][ T274] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.190312][ T274] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.190662][ T274] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.191071][  T274] RIP: 0033:0x7f24faa221e7
[ 20.191437][ T274] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   20.192630][  T274] RSP: 002b:00007ffc7195e8f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.193137][  T274] RAX: ffffffffffffffda RBX: 00007ffc7195f030 RCX: 00007f24faa221e7
[   20.193647][  T274] RDX: 0000000000000000 RSI: 00007ffc7195e960 RDI: 0000000000000005
[   20.194158][  T274] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   20.194680][  T274] R10: 00000000184f0910 R11: 0000000000000246 R12: 0000000000000003
[   20.195185][  T274] R13: 00000000686e5279 R14: 0000000000499600 R15: 0000000000000000
| [   20.334017][  T275] ------------[ cut here ]------------
| [ 20.334363][ T275] WARNING: CPU: 1 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) 
| [   20.335001][  T275] Modules linked in: bridge stp llc veth
| [   20.336021][  T275] Tainted: [W]=WARN
[   20.336279][  T275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.336688][ 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) 
[ 20.337019][ T275] Code: 00 00 8b 05 87 1c 38 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 ca d1 79 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 87 1c 38 02    	mov    0x2381c87(%rip),%eax        # 0x2381c8f
   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 ca d1 79 00       	call   0x79d1eb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.338194][  T275] RSP: 0018:ffffc900005e6ef0 EFLAGS: 00010246
[   20.339410][  T275] RAX: 0000000000000000 RBX: ffff888005182000 RCX: 0000000000000001
[   20.339904][  T275] RDX: 0000000000000000 RSI: ffffffffabc9f52e RDI: ffffffffab45a5a0
[   20.340395][  T275] RBP: ffffc900005e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.340878][  T275] R10: ffffc900005e7010 R11: ffffffffac1798a0 R12: 1ffff920000bcde2
[   20.341365][  T275] R13: 00000000000005dc R14: ffffc900005e7010 R15: ffff888005182f08
[   20.341855][  T275] FS:  00007f60bafbe800(0000) GS:ffff888088527000(0000) knlGS:0000000000000000
[   20.342444][  T275] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.342852][  T275] CR2: 00000000004e5aa8 CR3: 000000000c324004 CR4: 0000000000772ef0
[   20.343345][  T275] PKRU: 55555554
[   20.343588][  T275] Call Trace:
[   20.343828][  T275]  <TASK>
[ 20.343996][ T275] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.344326][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.344660][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.344986][ T275] netif_set_mtu (net/core/dev.c:9652) 
[ 20.345320][ T275] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.345658][ T275] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.345906][ T275] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.346374][ T275] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.346745][ T275] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.347080][ T275] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.347412][ T275] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.347819][ T275] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.348143][ T275] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.348472][ T275] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.348800][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.349124][ 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) 
[ 20.349458][ T275] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.349857][ T275] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.350180][ T275] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.350517][ T275] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.350840][ T275] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.351162][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.351492][ T275] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.351810][ T275] ? __create_object (mm/kmemleak.c:771) 
[ 20.352147][ T275] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.352478][ T275] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.352801][ T275] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.353198][ T275] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.353535][ T275] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.353861][ T275] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.354180][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.354527][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.354859][ T275] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.355181][ T275] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.355511][ T275] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.355836][ T275] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.356160][ T275] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.356491][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.356817][ T275] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.357142][ T275] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.357477][ T275] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.357819][ T275] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.358141][ 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) 
[ 20.358484][ T275] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.358810][ T275] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.359139][ T275] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.359478][ T275] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.359803][ T275] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.360130][ T275] ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 20.360465][ T275] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.360788][ T275] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.361112][ T275] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.361533][ T275] ___sys_sendmsg (net/socket.c:2670) 
[ 20.361863][ T275] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.362191][ 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) 
[ 20.362611][ T275] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.362943][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.363278][ T275] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.363606][ T275] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.363928][ 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) 
[ 20.364262][ T275] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.364595][ T275] __sys_sendmsg (net/socket.c:2700) 
[ 20.364915][ T275] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.365320][ T275] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.365655][ T275] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.365980][ T275] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.366322][ T275] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.366727][  T275] RIP: 0033:0x7f60bb18b1e7
[ 20.367064][ 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)
[   20.368227][  T275] RSP: 002b:00007ffc17232848 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.368712][  T275] RAX: ffffffffffffffda RBX: 00007ffc17232f80 RCX: 00007f60bb18b1e7
[   20.369202][  T275] RDX: 0000000000000000 RSI: 00007ffc172328b0 RDI: 0000000000000005
[   20.369697][  T275] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   20.370178][  T275] R10: 000000003f86a910 R11: 0000000000000246 R12: 0000000000000003


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