======================================
| [   19.953963][  T302] veth1: entered promiscuous mode
| [   19.957401][  T302] ------------[ cut here ]------------
| [ 19.957791][ T302] WARNING: CPU: 1 PID: 302 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) 
| [   19.958460][  T302] Modules linked in: bridge stp llc vrf veth
[   19.959618][  T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.960038][ T302] 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) 
[ 19.960449][ T302] 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
[   19.961633][  T302] RSP: 0000:ffffc900005f6ef0 EFLAGS: 00010246
[   19.962065][  T302] RAX: 0000000000000000 RBX: ffff888005842000 RCX: 0000000000000001
[   19.962554][  T302] RDX: 0000000000000000 RSI: ffffffffba09b941 RDI: ffffffffb98555e0
[   19.963061][  T302] RBP: ffffc900005f6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.963588][  T302] R10: ffffc900005f7010 R11: ffffffffbaea8918 R12: 1ffff920000bede2
[   19.964232][  T302] R13: 00000000000005dc R14: ffffc900005f7010 R15: ffff888005842f08
[   19.964893][  T302] FS:  00007faa0806f800(0000) GS:ffff888073337000(0000) knlGS:0000000000000000
[   19.965441][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.966035][  T302] CR2: 00000000004e5aa8 CR3: 000000000c71c003 CR4: 0000000000772ef0
[   19.966559][  T302] PKRU: 55555554
[   19.966981][  T302] Call Trace:
[   19.967252][  T302]  <TASK>
[ 19.967432][ T302] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.968015][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.968361][ T302] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.968880][ T302] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.969301][ T302] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.969648][ T302] netif_set_mtu (net/core/dev.c:9652) 
[ 19.970145][ T302] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.970480][ T302] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.971108][ T302] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.971360][ T302] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.971949][ T302] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.972326][ T302] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.972650][ T302] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.973117][ T302] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.973521][ T302] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.973870][ T302] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.974191][ T302] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.974524][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.974865][ T302] ? __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) 
[ 19.975190][ T302] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.975614][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.975966][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.976302][ T302] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.976621][ T302] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.976955][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.977300][ T302] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.977953][ T302] ? __create_object (mm/kmemleak.c:771) 
[ 19.978296][ T302] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.978643][ T302] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.978987][ T302] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.979411][ T302] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.979763][ T302] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.980116][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.980453][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.980811][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.981141][ T302] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.981465][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.981812][ T302] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.982149][ T302] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.982478][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.982848][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.983181][ T302] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.983506][ T302] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.983837][ T302] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.984168][ T302] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.984505][ T302] ? 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) 
[ 19.984850][ T302] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.985199][ T302] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.985531][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.985867][ T302] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.986195][ T302] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.986543][ T302] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.986904][ T302] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.987235][ T302] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.987580][ T302] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.988036][ T302] ___sys_sendmsg (net/socket.c:2670) 
[ 19.988375][ T302] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.988740][ T302] ? __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) 
[ 19.989157][ T302] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.989494][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.989859][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.990234][ T302] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.990560][ T302] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.990914][ T302] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.991262][ T302] __sys_sendmsg (net/socket.c:2700) 
[ 19.991583][ T302] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.992004][ T302] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.992342][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.992689][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.993036][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.993433][  T302] RIP: 0033:0x7faa0823c1e7
[ 19.993810][ T302] 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)
[   19.995019][  T302] RSP: 002b:00007ffd8d6279c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.995515][  T302] RAX: ffffffffffffffda RBX: 00007ffd8d6280f0 RCX: 00007faa0823c1e7
[   19.995985][  T302] RDX: 0000000000000000 RSI: 00007ffd8d627a30 RDI: 0000000000000005
[   19.996467][  T302] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.996963][  T302] R10: 0000000032b03910 R11: 0000000000000246 R12: 0000000000000004
[   19.997467][  T302] R13: 00000000686e3880 R14: 0000000000499600 R15: 0000000000000000
| [   20.166587][  T303] ------------[ cut here ]------------
| [ 20.167182][ T303] WARNING: CPU: 3 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) 
| [   20.168295][  T303] Modules linked in: bridge stp llc vrf veth
| [   20.170162][  T303] Tainted: [W]=WARN
[   20.170591][  T303] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.171269][ 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) 
[ 20.171854][ 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
[   20.173906][  T303] RSP: 0018:ffffc900005e6ef0 EFLAGS: 00010246
[   20.174628][  T303] RAX: 0000000000000000 RBX: ffff888005842000 RCX: 0000000000000001
[   20.175486][  T303] RDX: 0000000000000000 RSI: ffffffffba09b941 RDI: ffffffffb98555e0
[   20.176335][  T303] RBP: ffffc900005e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.177179][  T303] R10: ffffc900005e7010 R11: ffffffffbaea8918 R12: 1ffff920000bcde2
[   20.178036][  T303] R13: 00000000000005dc R14: ffffc900005e7010 R15: ffff888005842f08
[   20.178877][  T303] FS:  00007fe814eef800(0000) GS:ffff888073437000(0000) knlGS:0000000000000000
[   20.179879][  T303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.180600][  T303] CR2: 00000000004e5ab0 CR3: 000000000c07f004 CR4: 0000000000772ef0
[   20.181482][  T303] PKRU: 55555554
[   20.181931][  T303] Call Trace:
[   20.182361][  T303]  <TASK>
[ 20.182658][ T303] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.183235][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.183812][ T303] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.184349][ T303] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.185056][ T303] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.185644][ T303] netif_set_mtu (net/core/dev.c:9652) 
[ 20.186233][ T303] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.186837][ T303] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.187614][ T303] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.188027][ T303] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.188461][ T303] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.188834][ T303] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.189147][ T303] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.189462][ T303] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.190106][ T303] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.190417][ T303] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.190737][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.191052][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.191370][ 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) 
[ 20.191985][ T303] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.192371][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.192690][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.193000][ T303] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.193307][ T303] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.193619][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.193941][ T303] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.194257][ T303] ? __create_object (mm/kmemleak.c:771) 
[ 20.194571][ T303] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.194900][ T303] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.195228][ T303] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.195634][ T303] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.196198][ T303] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.196532][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.197096][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.197429][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.197762][ T303] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.198106][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.198435][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.198992][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.199322][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.199885][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.200428][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.200976][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.201283][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.201603][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.201924][ 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) 
[ 20.202459][ T303] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.202779][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.203090][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.203404][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.203947][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.204257][ T303] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.204577][ T303] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.204899][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.205462][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.205891][ T303] ___sys_sendmsg (net/socket.c:2670) 
[ 20.206200][ T303] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.206512][ 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) 
[ 20.207132][ T303] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.207455][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.207783][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.208118][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.208655][ 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) 
[ 20.208971][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.209308][ T303] __sys_sendmsg (net/socket.c:2700) 
[ 20.209611][ T303] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.210005][ T303] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.210490][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.210810][ T303] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.211357][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.211761][  T303] RIP: 0033:0x7fe8150bc1e7
[ 20.212081][ 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)
[   20.213446][  T303] RSP: 002b:00007ffdf25f1d48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.213925][  T303] RAX: ffffffffffffffda RBX: 00007ffdf25f2470 RCX: 00007fe8150bc1e7
[   20.214610][  T303] RDX: 0000000000000000 RSI: 00007ffdf25f1db0 RDI: 0000000000000005
[   20.215084][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.215539][  T303] R10: 0000000021408910 R11: 0000000000000246 R12: 0000000000000004


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