======================================
| [   19.337171][  T305] veth1: entered promiscuous mode
| [   19.339474][  T305] ------------[ cut here ]------------
| [ 19.339837][ T305] WARNING: CPU: 3 PID: 305 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) 
| [   19.340486][  T305] Modules linked in: bridge stp llc sch_ingress vrf veth
[   19.341707][  T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.342125][ T305] 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) 
[ 19.342469][ T305] 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
[   19.343849][  T305] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[   19.344278][  T305] RAX: 0000000000000000 RBX: ffff888004eea000 RCX: 0000000000000001
[   19.344791][  T305] RDX: 0000000000000000 RSI: ffffffffa1e9b941 RDI: ffffffffa16555e0
[   19.345279][  T305] RBP: ffffc900005d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.345807][  T305] R10: ffffc900005d7010 R11: ffffffffa2ca8918 R12: 1ffff920000bade2
[   19.346304][  T305] R13: 00000000000005dc R14: ffffc900005d7010 R15: ffff888004eeaf08
[   19.346827][  T305] FS:  00007f502dd8c800(0000) GS:ffff88808b837000(0000) knlGS:0000000000000000
[   19.347397][  T305] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.347846][  T305] CR2: 00000000004e5aa8 CR3: 000000000c824002 CR4: 0000000000772ef0
[   19.348350][  T305] PKRU: 55555554
[   19.348606][  T305] Call Trace:
[   19.348881][  T305]  <TASK>
[ 19.349051][ T305] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.349385][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.349733][ T305] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.350065][ T305] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.350489][ T305] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.350833][ T305] netif_set_mtu (net/core/dev.c:9652) 
[ 19.351155][ T305] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.351500][ T305] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.351957][ T305] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.352208][ T305] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.352666][ T305] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.353045][ T305] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.353374][ T305] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.353712][ T305] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.354136][ T305] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.354470][ T305] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.354793][ T305] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.355163][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.355499][ T305] ? __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) 
[ 19.355837][ T305] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.356250][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.356592][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.356919][ T305] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.357241][ T305] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.357583][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.357920][ T305] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.358239][ T305] ? __create_object (mm/kmemleak.c:771) 
[ 19.358572][ T305] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.358900][ T305] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.359232][ T305] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.359641][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.359989][ T305] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.360322][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.360653][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.361004][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.361349][ T305] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.361682][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.362020][ T305] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.362346][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.362693][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.363037][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.363372][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.363713][ T305] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.364051][ T305] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.364388][ T305] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.364710][ T305] ? 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) 
[ 19.365030][ T305] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.365359][ T305] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.365708][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.366035][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.366377][ T305] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.366710][ T305] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.367043][ T305] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.367411][ T305] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.367749][ T305] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.368171][ T305] ___sys_sendmsg (net/socket.c:2670) 
[ 19.368504][ T305] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.368827][ T305] ? __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) 
[ 19.369241][ T305] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.369821][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.370153][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.370503][ T305] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.370832][ T305] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.371153][ T305] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.371764][ T305] __sys_sendmsg (net/socket.c:2700) 
[ 19.372088][ T305] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.372507][ T305] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.373313][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.373639][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.373947][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.374345][  T305] RIP: 0033:0x7f502df591e7
[ 19.374673][ T305] 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)
[   19.376196][  T305] RSP: 002b:00007ffd90942738 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.376695][  T305] RAX: ffffffffffffffda RBX: 00007ffd90942e60 RCX: 00007f502df591e7
[   19.377161][  T305] RDX: 0000000000000000 RSI: 00007ffd909427a0 RDI: 0000000000000005
[   19.377647][  T305] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.378127][  T305] R10: 0000000015be0910 R11: 0000000000000246 R12: 0000000000000004
[   19.378618][  T305] R13: 00000000686e3d29 R14: 0000000000499600 R15: 0000000000000000
| [   19.653172][  T308] ------------[ cut here ]------------
| [ 19.653550][ T308] WARNING: CPU: 1 PID: 308 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) 
| [   19.654238][  T308] Modules linked in: bridge stp llc sch_ingress vrf veth
| [   19.655388][  T308] Tainted: [W]=WARN
[   19.655680][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.656117][ T308] 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) 
[ 19.656507][ T308] 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
[   19.659367][  T308] RSP: 0018:ffffc900004e6ef0 EFLAGS: 00010246
[   19.659969][  T308] RAX: 0000000000000000 RBX: ffff888004eea000 RCX: 0000000000000001
[   19.660531][  T308] RDX: 0000000000000000 RSI: ffffffffa1e9b941 RDI: ffffffffa16555e0
[   19.661052][  T308] RBP: ffffc900004e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.661577][  T308] R10: ffffc900004e7010 R11: ffffffffa2ca8918 R12: 1ffff9200009cde2
[   19.662103][  T308] R13: 00000000000005dc R14: ffffc900004e7010 R15: ffff888004eeaf08
[   19.662649][  T308] FS:  00007f00fa6c6800(0000) GS:ffff88808b737000(0000) knlGS:0000000000000000
[   19.663250][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.663694][  T308] CR2: 00000000004e5ab0 CR3: 000000000df54002 CR4: 0000000000772ef0
[   19.664211][  T308] PKRU: 55555554
[   19.664492][  T308] Call Trace:
[   19.664752][  T308]  <TASK>
[ 19.664933][ T308] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.665284][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.665658][ T308] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.666008][ T308] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.666436][ T308] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.666796][ T308] netif_set_mtu (net/core/dev.c:9652) 
[ 19.667143][ T308] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.667512][ T308] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.667995][ T308] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.668258][ T308] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.668743][ T308] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.669135][ T308] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.669505][ T308] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.669855][ T308] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.670300][ T308] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.670656][ T308] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.671002][ T308] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.671351][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.671712][ T308] ? __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) 
[ 19.672064][ T308] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.672511][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.672870][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.673215][ T308] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.673571][ T308] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.673922][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.674266][ T308] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.674633][ T308] ? __create_object (mm/kmemleak.c:771) 
[ 19.674982][ T308] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.675329][ T308] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.675704][ T308] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.676135][ T308] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.676508][ T308] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.676861][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.677206][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.677569][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.677914][ T308] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.678257][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.678630][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.678975][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.679320][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.679680][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.680030][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.680374][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.680739][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.681103][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.681451][ T308] ? 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) 
[ 19.681806][ T308] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.682156][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.682509][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.682861][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.683207][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.683566][ T308] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.683922][ T308] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.684270][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.684635][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.685080][ T308] ___sys_sendmsg (net/socket.c:2670) 
[ 19.685421][ T308] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.685805][ T308] ? __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) 
[ 19.686243][ T308] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.686602][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.686952][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.687303][ T308] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.687659][ T308] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.688006][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.688359][ T308] __sys_sendmsg (net/socket.c:2700) 
[ 19.688727][ T308] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.689160][ T308] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.689545][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.689896][ T308] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.690241][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.690675][  T308] RIP: 0033:0x7f00fa8931e7
[ 19.691030][ T308] 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)
[   19.692272][  T308] RSP: 002b:00007fff5a660708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.692813][  T308] RAX: ffffffffffffffda RBX: 00007fff5a660e30 RCX: 00007f00fa8931e7
[   19.693332][  T308] RDX: 0000000000000000 RSI: 00007fff5a660770 RDI: 0000000000000005
[   19.693863][  T308] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.694380][  T308] R10: 0000000019a78910 R11: 0000000000000246 R12: 0000000000000004
[   19.694905][  T308] R13: 00000000686e3d29 R14: 0000000000499600 R15: 0000000000000000
| [   65.733395][  T737] ------------[ cut here ]------------
| [ 65.733731][ T737] WARNING: CPU: 1 PID: 737 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) 
| [   65.734333][  T737] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   65.735785][  T737] Tainted: [W]=WARN
[   65.736049][  T737] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 65.736504][ T737] 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) 
[ 65.736829][ T737] 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
[   65.737986][  T737] RSP: 0018:ffffc90001366f70 EFLAGS: 00010246
[   65.738373][  T737] RAX: 0000000000000000 RBX: ffff888004eea000 RCX: 0000000000000001
[   65.738849][  T737] RDX: 0000000000000000 RSI: ffffffffa1e9b941 RDI: ffffffffa16555e0
[   65.739312][  T737] RBP: ffffc90001367058 R08: 0000000000000000 R09: 0000000000000000
[   65.739797][  T737] R10: ffffc90001367088 R11: ffffffff9e200130 R12: 1ffff9200026cdf2
[   65.740262][  T737] R13: 00000000000005dc R14: ffffc90001367088 R15: ffff888004eeaf08
[   65.740772][  T737] FS:  00007f02f99ac800(0000) GS:ffff88808b737000(0000) knlGS:0000000000000000
[   65.741332][  T737] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   65.741878][  T737] CR2: 00000000004e5ab0 CR3: 000000000dcf9004 CR4: 0000000000772ef0
[   65.742336][  T737] PKRU: 55555554
[   65.742696][  T737] Call Trace:
[   65.742924][  T737]  <TASK>
[ 65.743078][ T737] ? __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) 
[ 65.743482][ T737] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 65.743834][ T737] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 65.744151][ T737] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 65.744454][ T737] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 65.744795][ T737] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 65.745099][ T737] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 65.745419][ T737] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 65.745751][ T737] ? ___sys_sendmsg (net/socket.c:2670) 
[ 65.746066][ T737] ? __sys_sendmsg (net/socket.c:2700) 
[ 65.746375][ T737] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 65.746687][ T737] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 65.747096][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.747422][ T737] netif_set_mtu (net/core/dev.c:9652) 
[ 65.747739][ T737] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 65.748089][ T737] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 65.748322][ T737] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 65.748799][ T737] br_del_if (net/bridge/br_if.c:743) bridge 
[ 65.749139][ T737] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 65.749443][ T737] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 65.749777][ T737] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 65.750090][ T737] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 65.750485][ T737] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 65.750789][ T737] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 65.751091][ T737] ? __kernel_text_address (kernel/extable.c:79) 
[ 65.751428][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.751746][ T737] ? __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) 
[ 65.752076][ T737] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 65.752489][ T737] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 65.752805][ T737] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 65.753126][ T737] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 65.753430][ T737] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 65.753755][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.754065][ T737] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 65.754391][ T737] ? __create_object (mm/kmemleak.c:771) 
[ 65.754723][ T737] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 65.755028][ T737] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 65.755355][ T737] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 65.755759][ T737] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 65.756082][ T737] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 65.756391][ T737] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 65.756743][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.757060][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.757385][ T737] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 65.757697][ T737] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 65.758005][ T737] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 65.758305][ T737] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 65.758630][ T737] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 65.758963][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.759271][ T737] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 65.759613][ T737] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 65.759923][ T737] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 65.760261][ T737] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 65.760586][ T737] ? 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) 
[ 65.760915][ T737] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 65.761239][ T737] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 65.761551][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.761863][ T737] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 65.762168][ T737] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 65.762491][ T737] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 65.762821][ T737] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 65.763129][ T737] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 65.763438][ T737] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 65.763835][ T737] ___sys_sendmsg (net/socket.c:2670) 
[ 65.764139][ T737] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 65.764441][ T737] ? __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) 
[ 65.764870][ T737] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 65.765192][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.765514][ T737] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 65.765842][ T737] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 65.766150][ T737] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 65.766453][ T737] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 65.766777][ T737] __sys_sendmsg (net/socket.c:2700) 
[ 65.767081][ T737] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 65.767471][ T737] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 65.767798][ T737] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 65.768111][ T737] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 65.768429][ T737] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   65.768849][  T737] RIP: 0033:0x7f02f9b791e7
[ 65.769194][ T737] 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)
[   65.770324][  T737] RSP: 002b:00007ffd0be71998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   65.770819][  T737] RAX: ffffffffffffffda RBX: 00007ffd0be720c0 RCX: 00007f02f9b791e7
[   65.771273][  T737] RDX: 0000000000000000 RSI: 00007ffd0be71a00 RDI: 0000000000000005
[   65.771737][  T737] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   65.772202][  T737] R10: 00007f02f9a76ee8 R11: 0000000000000246 R12: 0000000000000003
[   65.772679][  T737] R13: 00000000686e3d57 R14: 0000000000499600 R15: 0000000000000000
| [   66.069839][  T739] ------------[ cut here ]------------
| [ 66.070178][ T739] WARNING: CPU: 2 PID: 739 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) 
| [   66.070973][  T739] Modules linked in: act_gact act_pedit cls_flower bridge stp llc sch_ingress vrf veth
| [   66.072206][  T739] Tainted: [W]=WARN
[   66.072451][  T739] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 66.072858][ T739] 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) 
[ 66.073188][ T739] 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
[   66.074304][  T739] RSP: 0018:ffffc90001376f70 EFLAGS: 00010246
[   66.074713][  T739] RAX: 0000000000000000 RBX: ffff888004eea000 RCX: 0000000000000001
[   66.075184][  T739] RDX: 0000000000000000 RSI: ffffffffa1e9b941 RDI: ffffffffa16555e0
[   66.075684][  T739] RBP: ffffc90001377058 R08: 0000000000000000 R09: 0000000000000000
[   66.076157][  T739] R10: ffffc90001377088 R11: ffffffffa2379160 R12: 1ffff9200026edf2
[   66.076641][  T739] R13: 00000000000005dc R14: ffffc90001377088 R15: ffff888004eeaf08
[   66.077108][  T739] FS:  00007f534bbbd800(0000) GS:ffff88808b7b7000(0000) knlGS:0000000000000000
[   66.077674][  T739] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.078073][  T739] CR2: 00000000004e5aa8 CR3: 00000000094e9006 CR4: 0000000000772ef0
[   66.078558][  T739] PKRU: 55555554
[   66.078803][  T739] Call Trace:
[   66.079046][  T739]  <TASK>
[ 66.079215][ T739] ? __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) 
[ 66.079626][ T739] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 66.079987][ T739] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 66.080305][ T739] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 66.080638][ T739] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 66.080954][ T739] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 66.081274][ T739] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 66.081613][ T739] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 66.081954][ T739] ? ___sys_sendmsg (net/socket.c:2670) 
[ 66.082291][ T739] ? __sys_sendmsg (net/socket.c:2700) 
[ 66.082627][ T739] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 66.082943][ T739] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 66.083338][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.083681][ T739] netif_set_mtu (net/core/dev.c:9652) 
[ 66.084004][ T739] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 66.084337][ T739] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 66.084592][ T739] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 66.085034][ T739] br_del_if (net/bridge/br_if.c:743) bridge 
[ 66.085381][ T739] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 66.085722][ T739] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 66.086046][ T739] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 66.086367][ T739] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 66.086780][ T739] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 66.087096][ T739] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 66.087419][ T739] ? __kernel_text_address (kernel/extable.c:79) 
[ 66.087753][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.088078][ T739] ? __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) 
[ 66.088397][ T739] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 66.088798][ T739] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 66.089120][ T739] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 66.089440][ T739] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 66.089780][ T739] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 66.090097][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.090416][ T739] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 66.090744][ T739] ? __create_object (mm/kmemleak.c:771) 
[ 66.091066][ T739] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 66.091389][ T739] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 66.091720][ T739] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 66.092128][ T739] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 66.092454][ T739] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 66.092789][ T739] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 66.093109][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.093431][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.093764][ T739] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 66.094078][ T739] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 66.094401][ T739] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 66.094738][ T739] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 66.095058][ T739] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 66.095378][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.095721][ T739] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 66.096043][ T739] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 66.096363][ T739] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 66.096702][ T739] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 66.097028][ T739] ? 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) 
[ 66.097346][ T739] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 66.097691][ T739] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 66.098011][ T739] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 66.098334][ T739] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 66.098669][ T739] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 66.098988][ T739] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 66.099313][ T739] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 66.099657][ T739] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 66.099975][ T739] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 66.100371][ T739] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 66.100778][ T739] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 66.101101][ T739] ___sys_sendmsg (net/socket.c:2670) 
[ 66.101421][ T739] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 66.101769][ T739] ? kasan_quarantine_put (mm/kasan/quarantine.c:234 (discriminator 1)) 
[ 66.102087][ T739] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 66.102405][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.102744][ T739] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 66.103062][ T739] ? rcu_do_batch (kernel/rcu/tree_nocb.h:1636 kernel/rcu/tree.c:2642) 
[ 66.103386][ T739] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 66.103715][ T739] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 66.104036][ T739] __sys_sendmsg (net/socket.c:2700) 
[ 66.104359][ T739] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 66.104687][ T739] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 66.105082][ T739] ? handle_softirqs (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:426 kernel/softirq.c:607) 
[ 66.105402][ T739] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 66.105748][ T739] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 66.106070][ T739] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   66.106471][  T739] RIP: 0033:0x7f534bd8a1e7
[ 66.106810][ T739] 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)
[   66.107924][  T739] RSP: 002b:00007ffd937fd698 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   66.108400][  T739] RAX: ffffffffffffffda RBX: 00007ffd937fddc0 RCX: 00007f534bd8a1e7
[   66.108892][  T739] RDX: 0000000000000000 RSI: 00007ffd937fd700 RDI: 0000000000000005
[   66.109361][  T739] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   66.109842][  T739] R10: 00007f534bc87ee8 R11: 0000000000000246 R12: 0000000000000003


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