======================================
| [   19.051987][  T301] veth1: entered promiscuous mode
| [   19.054324][  T301] ------------[ cut here ]------------
| [ 19.054683][ T301] WARNING: CPU: 2 PID: 301 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) 
| [   19.055491][  T301] Modules linked in: bridge stp llc vrf veth
[   19.056550][  T301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.056953][ T301] 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) 
[ 19.057298][ T301] 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
[   19.058413][  T301] RSP: 0018:ffffc90000646ef0 EFLAGS: 00010246
[   19.058833][  T301] RAX: 0000000000000000 RBX: ffff88800961a000 RCX: 0000000000000001
[   19.059317][  T301] RDX: 0000000000000000 RSI: ffffffffb749b941 RDI: ffffffffb6c555e0
[   19.059792][  T301] RBP: ffffc90000646fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.060280][  T301] R10: ffffc90000647010 R11: ffffffffb82a8918 R12: 1ffff920000c8de2
[   19.060753][  T301] R13: 00000000000005dc R14: ffffc90000647010 R15: ffff88800961af08
[   19.061241][  T301] FS:  00007f4950f84800(0000) GS:ffff88807cdb7000(0000) knlGS:0000000000000000
[   19.061799][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.062211][  T301] CR2: 00000000004e5aa8 CR3: 000000000514f002 CR4: 0000000000772ef0
[   19.062692][  T301] PKRU: 55555554
[   19.062937][  T301] Call Trace:
[   19.063204][  T301]  <TASK>
[ 19.063383][ T301] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.063711][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.064057][ T301] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.064382][ T301] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.064799][ T301] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.065134][ T301] netif_set_mtu (net/core/dev.c:9652) 
[ 19.065474][ T301] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.065847][ T301] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.066361][ T301] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.066631][ T301] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.067112][ T301] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.067483][ T301] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.067809][ T301] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.068143][ T301] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.068563][ T301] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.068895][ T301] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.069227][ T301] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.069555][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.069875][ T301] ? __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) 
[ 19.070210][ T301] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.070607][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.070929][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.071260][ T301] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.071582][ T301] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.071900][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.072233][ T301] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.072548][ T301] ? __create_object (mm/kmemleak.c:771) 
[ 19.072874][ T301] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.073205][ T301] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.073537][ T301] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.073929][ T301] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.074266][ T301] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.074589][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.074906][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.075252][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.075585][ T301] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.075910][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.076252][ T301] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.076582][ T301] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.076922][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.077258][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.077585][ T301] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.077904][ T301] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.078248][ T301] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.078607][ T301] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.078936][ T301] ? 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) 
[ 19.079281][ T301] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.079642][ T301] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.079974][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.080324][ T301] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.080654][ T301] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.081463][ T301] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.081801][ T301] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.082132][ T301] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.082462][ T301] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.082868][ T301] ___sys_sendmsg (net/socket.c:2670) 
[ 19.083431][ T301] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.083751][ T301] ? __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) 
[ 19.084157][ T301] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.084479][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.084799][ T301] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.085356][ T301] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.085675][ T301] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.086448][ T301] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.086773][ T301] __sys_sendmsg (net/socket.c:2700) 
[ 19.087105][ T301] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.087502][ T301] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.087840][ T301] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.088175][ T301] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.088516][ T301] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.089581][  T301] RIP: 0033:0x7f49511511e7
[ 19.089915][ T301] 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)
[   19.091262][  T301] RSP: 002b:00007ffd2373b378 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.091752][  T301] RAX: ffffffffffffffda RBX: 00007ffd2373baa0 RCX: 00007f49511511e7
[   19.092233][  T301] RDX: 0000000000000000 RSI: 00007ffd2373b3e0 RDI: 0000000000000005
[   19.092713][  T301] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.093207][  T301] R10: 000000002aca8910 R11: 0000000000000246 R12: 0000000000000004
[   19.093699][  T301] R13: 00000000686e4443 R14: 0000000000499600 R15: 0000000000000000
| [   19.208259][  T303] ------------[ cut here ]------------
| [ 19.208625][ T303] WARNING: CPU: 2 PID: 303 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) 
| [   19.209332][  T303] Modules linked in: bridge stp llc vrf veth
| [   19.210650][  T303] Tainted: [W]=WARN
[   19.211076][  T303] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.211657][ T303] 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) 
[ 19.212075][ T303] 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
[   19.213261][  T303] RSP: 0018:ffffc90000646ef0 EFLAGS: 00010246
[   19.213684][  T303] RAX: 0000000000000000 RBX: ffff88800961a000 RCX: 0000000000000001
[   19.214192][  T303] RDX: 0000000000000000 RSI: ffffffffb749b941 RDI: ffffffffb6c555e0
[   19.214690][  T303] RBP: ffffc90000646fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.215204][  T303] R10: ffffc90000647010 R11: ffffffffb82a8918 R12: 1ffff920000c8de2
[   19.215705][  T303] R13: 00000000000005dc R14: ffffc90000647010 R15: ffff88800961af08
[   19.216216][  T303] FS:  00007f5fb1103800(0000) GS:ffff88807cdb7000(0000) knlGS:0000000000000000
[   19.216763][  T303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.217175][  T303] CR2: 00000000004e5ab0 CR3: 000000000e55c005 CR4: 0000000000772ef0
[   19.217647][  T303] PKRU: 55555554
[   19.217887][  T303] Call Trace:
[   19.218137][  T303]  <TASK>
[ 19.218344][ T303] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.218698][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.219070][ T303] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.219423][ T303] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.219854][ T303] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.220219][ T303] netif_set_mtu (net/core/dev.c:9652) 
[ 19.220563][ T303] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.220919][ T303] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.221397][ T303] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.221658][ T303] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.222125][ T303] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.222512][ T303] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.222849][ T303] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.223196][ T303] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.223615][ T303] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.223948][ T303] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.224293][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.224633][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.224973][ T303] ? __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) 
[ 19.225319][ T303] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.225739][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.226085][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.226416][ T303] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.226748][ T303] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.227093][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.227430][ T303] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.227765][ T303] ? __create_object (mm/kmemleak.c:771) 
[ 19.228110][ T303] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.228506][ T303] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.228846][ T303] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.229294][ T303] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.229642][ T303] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.229979][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.230349][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.230703][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.231049][ T303] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.231400][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.231740][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.232090][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.232445][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.232781][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.233152][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.233508][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.233845][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.234205][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.234559][ T303] ? 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) 
[ 19.234897][ T303] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.235257][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.235617][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.235956][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.236308][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.236657][ T303] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.237000][ T303] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.237350][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.237698][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.238141][ T303] ___sys_sendmsg (net/socket.c:2670) 
[ 19.238503][ T303] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.238843][ T303] ? __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) 
[ 19.239270][ T303] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.239628][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.239970][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.240325][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.240681][ T303] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.241025][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.241368][ T303] __sys_sendmsg (net/socket.c:2700) 
[ 19.241714][ T303] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.242139][ T303] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.242487][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.242841][ T303] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.243191][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.243634][  T303] RIP: 0033:0x7f5fb12d01e7
[ 19.243978][ T303] 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)
[   19.245164][  T303] RSP: 002b:00007fff2ab49c38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.245686][  T303] RAX: ffffffffffffffda RBX: 00007fff2ab4a360 RCX: 00007f5fb12d01e7
[   19.246189][  T303] RDX: 0000000000000000 RSI: 00007fff2ab49ca0 RDI: 0000000000000005
[   19.246701][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.247207][  T303] R10: 000000000156f910 R11: 0000000000000246 R12: 0000000000000004


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