======================================
| [   19.994234][  T309] veth1: entered promiscuous mode
| [   19.996768][  T309] ------------[ cut here ]------------
| [ 19.997138][ T309] WARNING: CPU: 1 PID: 309 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) 
| [   19.997805][  T309] Modules linked in: bridge stp llc 8021q vrf veth
[   19.998935][  T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.999349][ T309] 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) 
[ 19.999861][ T309] 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
[   20.001195][  T309] RSP: 0018:ffffc90000606ef0 EFLAGS: 00010246
[   20.002070][  T309] RAX: 0000000000000000 RBX: ffff88800adaa000 RCX: 0000000000000001
[   20.002718][  T309] RDX: 0000000000000000 RSI: ffffffffb869b941 RDI: ffffffffb7e555e0
[   20.003206][  T309] RBP: ffffc90000606fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.003849][  T309] R10: ffffc90000607010 R11: ffffffffb94a8918 R12: 1ffff920000c0de2
[   20.004495][  T309] R13: 00000000000005dc R14: ffffc90000607010 R15: ffff88800adaaf08
[   20.004979][  T309] FS:  00007fd555846800(0000) GS:ffff88807bb37000(0000) knlGS:0000000000000000
[   20.005730][  T309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.006234][  T309] CR2: 00000000004e5aa8 CR3: 000000000ec7f005 CR4: 0000000000772ef0
[   20.007015][  T309] PKRU: 55555554
[   20.007570][  T309] Call Trace:
[   20.007868][  T309]  <TASK>
[ 20.008039][ T309] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.008639][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.009030][ T309] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.009784][ T309] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.010484][ T309] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.010874][ T309] netif_set_mtu (net/core/dev.c:9652) 
[ 20.011256][ T309] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.011843][ T309] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.012487][ T309] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.012735][ T309] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.013176][ T309] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.013576][ T309] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.013906][ T309] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.014230][ T309] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.014658][ T309] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.014987][ T309] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.015320][ T309] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.015653][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.015977][ T309] ? __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) 
[ 20.016313][ T309] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.016741][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.017062][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.017409][ T309] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.017744][ T309] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.018258][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.018810][ T309] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.019360][ T309] ? __create_object (mm/kmemleak.c:771) 
[ 20.019895][ T309] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.020456][ T309] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.020950][ T309] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.021384][ T309] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.021723][ T309] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.022050][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.022382][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.022816][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.023142][ T309] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.023547][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.024055][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.024400][ T309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.024728][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.025051][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.025394][ T309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.025719][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.026038][ T309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.026387][ T309] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.026729][ T309] ? 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) 
[ 20.027051][ T309] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.027496][ T309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.027820][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.028142][ T309] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.028499][ T309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.028821][ T309] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.029156][ T309] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.029506][ T309] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.029833][ T309] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.030339][ T309] ___sys_sendmsg (net/socket.c:2670) 
[ 20.030727][ T309] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.031123][ T309] ? __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) 
[ 20.031652][ T309] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.032045][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.032452][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.032877][ T309] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.033274][ T309] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.033655][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.034064][ T309] __sys_sendmsg (net/socket.c:2700) 
[ 20.034505][ T309] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.034948][ T309] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.035265][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.035599][ T309] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.035907][ T309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.036284][  T309] RIP: 0033:0x7fd555a131e7
[ 20.036653][ T309] 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)
[   20.038005][  T309] RSP: 002b:00007ffe07e2a178 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.038830][  T309] RAX: ffffffffffffffda RBX: 00007ffe07e2a8a0 RCX: 00007fd555a131e7
[   20.039688][  T309] RDX: 0000000000000000 RSI: 00007ffe07e2a1e0 RDI: 0000000000000005
[   20.040567][  T309] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.041407][  T309] R10: 0000000005350910 R11: 0000000000000246 R12: 0000000000000004
[   20.042237][  T309] R13: 00000000686e1210 R14: 0000000000499600 R15: 0000000000000000
| [   20.190989][  T310] ------------[ cut here ]------------
| [ 20.191314][ T310] WARNING: CPU: 3 PID: 310 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) 
| [   20.191913][  T310] Modules linked in: bridge stp llc 8021q vrf veth
| [   20.192933][  T310] Tainted: [W]=WARN
[   20.193168][  T310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.193570][ T310] 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) 
[ 20.193890][ T310] 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
[   20.194986][  T310] RSP: 0018:ffffc90000566ef0 EFLAGS: 00010246
[   20.195383][  T310] RAX: 0000000000000000 RBX: ffff88800adaa000 RCX: 0000000000000001
[   20.195841][  T310] RDX: 0000000000000000 RSI: ffffffffb869b941 RDI: ffffffffb7e555e0
[   20.196305][  T310] RBP: ffffc90000566fe0 R08: 0000000000000000 R09: 0000000000000000
[   20.196776][  T310] R10: ffffc90000567010 R11: ffffffffb94a8918 R12: 1ffff920000acde2
[   20.197232][  T310] R13: 00000000000005dc R14: ffffc90000567010 R15: ffff88800adaaf08
[   20.197700][  T310] FS:  00007f68e8e57800(0000) GS:ffff88807bc37000(0000) knlGS:0000000000000000
[   20.198237][  T310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.198632][  T310] CR2: 00000000004e5ab0 CR3: 000000000938b006 CR4: 0000000000772ef0
[   20.199093][  T310] PKRU: 55555554
[   20.199333][  T310] Call Trace:
[   20.199564][  T310]  <TASK>
[ 20.199721][ T310] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.200035][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.200354][ T310] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 20.200660][ T310] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.201038][ T310] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.201358][ T310] netif_set_mtu (net/core/dev.c:9652) 
[ 20.201666][ T310] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.201982][ T310] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 20.202427][ T310] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.202662][ T310] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 20.203078][ T310] br_add_if (net/bridge/br_if.c:697) bridge 
[ 20.203438][ T310] do_set_master (net/core/rtnetlink.c:2948) 
[ 20.203748][ T310] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 20.204057][ T310] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 20.204451][ T310] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 20.204763][ T310] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 20.205067][ T310] ? __kernel_text_address (kernel/extable.c:79) 
[ 20.205386][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.205694][ T310] ? __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) 
[ 20.206000][ T310] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 20.206389][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.206715][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.207023][ T310] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 20.207340][ T310] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 20.207644][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.207948][ T310] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.208250][ T310] ? __create_object (mm/kmemleak.c:771) 
[ 20.208565][ T310] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 20.208871][ T310] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 20.209179][ T310] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.209564][ T310] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 20.209874][ T310] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.210182][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.210497][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.210808][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.211112][ T310] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.211422][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.211733][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.212040][ T310] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.212357][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.212663][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.212969][ T310] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.213272][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.213586][ T310] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.213904][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.214204][ T310] ? 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) 
[ 20.214520][ T310] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.214825][ T310] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.215126][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.215445][ T310] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.215751][ T310] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.216058][ T310] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.216379][ T310] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.216693][ T310] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.216994][ T310] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.217392][ T310] ___sys_sendmsg (net/socket.c:2670) 
[ 20.217691][ T310] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.217989][ T310] ? __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) 
[ 20.218383][ T310] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.218690][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.218993][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.219310][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.219613][ T310] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.219913][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.220222][ T310] __sys_sendmsg (net/socket.c:2700) 
[ 20.220532][ T310] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.220912][ T310] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.221224][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.221542][ T310] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.221845][ T310] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.222218][  T310] RIP: 0033:0x7f68e90241e7
[ 20.222540][ T310] 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)
[   20.223629][  T310] RSP: 002b:00007ffd08911478 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.224086][  T310] RAX: ffffffffffffffda RBX: 00007ffd08911ba0 RCX: 00007f68e90241e7
[   20.224545][  T310] RDX: 0000000000000000 RSI: 00007ffd089114e0 RDI: 0000000000000005
[   20.225006][  T310] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   20.225465][  T310] R10: 0000000002989910 R11: 0000000000000246 R12: 0000000000000004


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