======================================
| [   18.678358][  T299] veth1: entered promiscuous mode
| [   18.680910][  T299] ------------[ cut here ]------------
| [ 18.681242][ T299] WARNING: CPU: 3 PID: 299 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) 
| [   18.681970][  T299] Modules linked in: bridge stp llc vrf veth
[   18.683021][  T299] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.683421][ T299] 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) 
[ 18.683931][ T299] 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
[   18.685239][  T299] RSP: 0018:ffffc900009c6ef0 EFLAGS: 00010246
[   18.685634][  T299] RAX: 0000000000000000 RBX: ffff88800cb9a000 RCX: 0000000000000001
[   18.686327][  T299] RDX: 0000000000000000 RSI: ffffffffb549b941 RDI: ffffffffb4c555e0
[   18.686959][  T299] RBP: ffffc900009c6fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.687422][  T299] R10: ffffc900009c7010 R11: ffffffffb62a8918 R12: 1ffff92000138de2
[   18.688027][  T299] R13: 00000000000005dc R14: ffffc900009c7010 R15: ffff88800cb9af08
[   18.688495][  T299] FS:  00007f81bcffa800(0000) GS:ffff888078037000(0000) knlGS:0000000000000000
[   18.689325][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.689732][  T299] CR2: 00000000004e5aa8 CR3: 000000000d505002 CR4: 0000000000772ef0
[   18.690211][  T299] PKRU: 55555554
[   18.690448][  T299] Call Trace:
[   18.690680][  T299]  <TASK>
[ 18.690852][ T299] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.691185][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.691502][ T299] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.691823][ T299] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.692214][ T299] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.692526][ T299] netif_set_mtu (net/core/dev.c:9652) 
[ 18.692848][ T299] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.693171][ T299] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.693626][ T299] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.693872][ T299] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.694300][ T299] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.694653][ T299] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.694976][ T299] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.695290][ T299] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.695680][ T299] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.696008][ T299] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.696316][ T299] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.696629][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.696949][ T299] ? __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) 
[ 18.697263][ T299] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.697644][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.697958][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.698268][ T299] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.698575][ T299] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.698895][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.699208][ T299] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.699511][ T299] ? __create_object (mm/kmemleak.c:771) 
[ 18.699831][ T299] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.700142][ T299] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.700455][ T299] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.700849][ T299] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.701163][ T299] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.701476][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.701795][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.702110][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.702419][ T299] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.702742][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.703053][ T299] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.703363][ T299] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.703685][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.704014][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.704347][ T299] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.704665][ T299] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.704987][ T299] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.705317][ T299] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.705625][ T299] ? 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) 
[ 18.705951][ T299] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.706263][ T299] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.706572][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.706896][ T299] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.707213][ T299] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.707532][ T299] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.707857][ T299] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.708174][ T299] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.708482][ T299] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.708891][ T299] ___sys_sendmsg (net/socket.c:2670) 
[ 18.709199][ T299] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.709508][ T299] ? __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) 
[ 18.709902][ T299] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.710213][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.710524][ T299] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.710845][ T299] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.711155][ T299] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.711464][ T299] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.711788][ T299] __sys_sendmsg (net/socket.c:2700) 
[ 18.712097][ T299] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.712482][ T299] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.712813][ T299] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.713405][ T299] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.713739][ T299] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.714121][  T299] RIP: 0033:0x7f81bd1c71e7
[ 18.714456][ T299] 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)
[   18.715801][  T299] RSP: 002b:00007ffe4d7e2998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.716273][  T299] RAX: ffffffffffffffda RBX: 00007ffe4d7e30c0 RCX: 00007f81bd1c71e7
[   18.716760][  T299] RDX: 0000000000000000 RSI: 00007ffe4d7e2a00 RDI: 0000000000000005
[   18.717230][  T299] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.717697][  T299] R10: 000000001e917910 R11: 0000000000000246 R12: 0000000000000004
[   18.718168][  T299] R13: 00000000686e4a9b R14: 0000000000499600 R15: 0000000000000000
| [   18.954529][  T303] ------------[ cut here ]------------
| [ 18.954863][ T303] WARNING: CPU: 1 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) 
| [   18.955473][  T303] Modules linked in: bridge stp llc vrf veth
| [   18.956515][  T303] Tainted: [W]=WARN
[   18.956759][  T303] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.957142][ 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) 
[ 18.957457][ 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
[   18.959359][  T303] RSP: 0018:ffffc90000826ef0 EFLAGS: 00010246
[   18.959758][  T303] RAX: 0000000000000000 RBX: ffff88800cb9a000 RCX: 0000000000000001
[   18.960221][  T303] RDX: 0000000000000000 RSI: ffffffffb549b941 RDI: ffffffffb4c555e0
[   18.960676][  T303] RBP: ffffc90000826fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.961164][  T303] R10: ffffc90000827010 R11: ffffffffb62a8918 R12: 1ffff92000104de2
[   18.961631][  T303] R13: 00000000000005dc R14: ffffc90000827010 R15: ffff88800cb9af08
[   18.962102][  T303] FS:  00007f2378b10800(0000) GS:ffff888077f37000(0000) knlGS:0000000000000000
[   18.962633][  T303] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.963029][  T303] CR2: 00000000004e5ab0 CR3: 000000000d4cc001 CR4: 0000000000772ef0
[   18.963505][  T303] PKRU: 55555554
[   18.963751][  T303] Call Trace:
[   18.963982][  T303]  <TASK>
[ 18.964142][ T303] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.964450][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.964787][ T303] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.965106][ T303] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.965499][ T303] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.965823][ T303] netif_set_mtu (net/core/dev.c:9652) 
[ 18.966134][ T303] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.966451][ T303] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.966897][ T303] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.967134][ T303] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.967556][ T303] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.967928][ T303] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.968244][ T303] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.968555][ T303] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.968970][ T303] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.969286][ T303] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.969591][ T303] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.969928][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.970248][ 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) 
[ 18.970562][ T303] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.970950][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.971261][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.971566][ T303] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.971883][ T303] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.972194][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.972507][ T303] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.972818][ T303] ? __create_object (mm/kmemleak.c:771) 
[ 18.973129][ T303] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.973437][ T303] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.973761][ T303] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.974139][ T303] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.974452][ T303] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.974775][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.975084][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.975394][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.975701][ T303] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.976016][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.976326][ T303] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.976633][ T303] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.976965][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.977284][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.977594][ T303] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.977909][ T303] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.978219][ T303] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.978535][ T303] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.978849][ 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) 
[ 18.979160][ T303] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.979474][ T303] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.979790][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.980101][ T303] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.980407][ T303] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.980713][ T303] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.981055][ T303] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.981363][ T303] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.981666][ T303] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.982082][ T303] ___sys_sendmsg (net/socket.c:2670) 
[ 18.982386][ T303] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.982691][ 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) 
[ 18.983084][ T303] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.983394][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.983720][ T303] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.984045][ T303] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.984356][ 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) 
[ 18.984659][ T303] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.984994][ T303] __sys_sendmsg (net/socket.c:2700) 
[ 18.985297][ T303] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.985676][ T303] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.985999][ T303] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.986310][ T303] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.986623][ T303] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.987013][  T303] RIP: 0033:0x7f2378cdd1e7
[ 18.987335][ 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)
[   18.988426][  T303] RSP: 002b:00007ffe33b5d718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.988935][  T303] RAX: ffffffffffffffda RBX: 00007ffe33b5de40 RCX: 00007f2378cdd1e7
[   18.989394][  T303] RDX: 0000000000000000 RSI: 00007ffe33b5d780 RDI: 0000000000000005
[   18.989861][  T303] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.990315][  T303] R10: 00000000246c8910 R11: 0000000000000246 R12: 0000000000000004
[   18.990789][  T303] R13: 00000000686e4a9b R14: 0000000000499600 R15: 0000000000000000
| [   49.462808][  T521] ------------[ cut here ]------------
| [ 49.463167][ T521] WARNING: CPU: 3 PID: 521 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) 
| [   49.464296][  T521] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   49.465568][  T521] Tainted: [W]=WARN
[   49.465822][  T521] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.466238][ T521] 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) 
[ 49.466575][ T521] 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
[   49.467766][  T521] RSP: 0018:ffffc90000e66f70 EFLAGS: 00010246
[   49.468188][  T521] RAX: 0000000000000000 RBX: ffff88800cb9a000 RCX: 0000000000000001
[   49.468676][  T521] RDX: 0000000000000000 RSI: ffffffffb549b941 RDI: ffffffffb4c555e0
[   49.469178][  T521] RBP: ffffc90000e67058 R08: 0000000000000000 R09: 0000000000000000
[   49.469654][  T521] R10: ffffc90000e67088 R11: ffffffffb1800130 R12: 1ffff920001ccdf2
[   49.470160][  T521] R13: 00000000000005dc R14: ffffc90000e67088 R15: ffff88800cb9af08
[   49.470644][  T521] FS:  00007f4530fea800(0000) GS:ffff888078037000(0000) knlGS:0000000000000000
[   49.471215][  T521] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.471624][  T521] CR2: 00000000004e5ab0 CR3: 000000000ab6c005 CR4: 0000000000772ef0
[   49.472126][  T521] PKRU: 55555554
[   49.472372][  T521] Call Trace:
[   49.472613][  T521]  <TASK>
[ 49.472784][ T521] ? __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) 
[ 49.473194][ T521] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 49.473582][ T521] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.473915][ T521] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.474235][ T521] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.474551][ T521] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.474884][ T521] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.475202][ T521] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.475525][ T521] ? ___sys_sendmsg (net/socket.c:2670) 
[ 49.475866][ T521] ? __sys_sendmsg (net/socket.c:2700) 
[ 49.476194][ T521] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.476511][ T521] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 49.476920][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.477253][ T521] netif_set_mtu (net/core/dev.c:9652) 
[ 49.477578][ T521] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.477925][ T521] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.478170][ T521] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 49.478612][ T521] br_del_if (net/bridge/br_if.c:743) bridge 
[ 49.478980][ T521] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 49.479298][ T521] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.479622][ T521] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.479970][ T521] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 49.480385][ T521] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 49.480706][ T521] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 49.481040][ T521] ? __kernel_text_address (kernel/extable.c:79) 
[ 49.481367][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.481689][ T521] ? __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) 
[ 49.482017][ T521] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 49.482415][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.482749][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.483068][ T521] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 49.483391][ T521] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 49.483745][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.484068][ T521] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 49.484390][ T521] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 49.484717][ T521] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.485066][ T521] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 49.485392][ T521] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 49.485719][ T521] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.486059][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.486384][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.486704][ T521] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 49.487037][ T521] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.487358][ T521] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.487681][ T521] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 49.488023][ T521] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.488355][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.488680][ T521] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 49.489017][ T521] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.489339][ T521] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 49.489673][ T521] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 49.490004][ T521] ? 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) 
[ 49.490330][ T521] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.490663][ T521] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 49.490992][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.491320][ T521] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.491646][ T521] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 49.491984][ T521] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 49.492317][ T521] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.492639][ T521] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 49.492965][ T521] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 49.493383][ T521] ___sys_sendmsg (net/socket.c:2670) 
[ 49.493714][ T521] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 49.494049][ T521] ? __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) 
[ 49.494452][ T521] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 49.494784][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.495109][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.495434][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.495776][ T521] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 49.496100][ T521] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.496427][ T521] __sys_sendmsg (net/socket.c:2700) 
[ 49.496754][ T521] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 49.497150][ T521] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 49.497471][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.497802][ T521] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.498128][ T521] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.498523][  T521] RIP: 0033:0x7f45311b71e7
[ 49.498864][ T521] 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)
[   49.500024][  T521] RSP: 002b:00007ffe8f69e2f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.500528][  T521] RAX: ffffffffffffffda RBX: 00007ffe8f69ea20 RCX: 00007f45311b71e7
[   49.501018][  T521] RDX: 0000000000000000 RSI: 00007ffe8f69e360 RDI: 0000000000000005
[   49.501490][  T521] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   49.501976][  T521] R10: 00007f45310b4ee8 R11: 0000000000000246 R12: 0000000000000003
[   49.502465][  T521] R13: 00000000686e4aba R14: 0000000000499600 R15: 0000000000000000
| [   49.741848][  T523] ------------[ cut here ]------------
| [ 49.742170][ T523] WARNING: CPU: 3 PID: 523 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) 
| [   49.743315][  T523] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   49.744508][  T523] Tainted: [W]=WARN
[   49.744757][  T523] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.745140][ T523] 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) 
[ 49.745461][ T523] 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
[   49.746562][  T523] RSP: 0018:ffffc90000e86f70 EFLAGS: 00010246
[   49.746978][  T523] RAX: 0000000000000000 RBX: ffff88800cb9a000 RCX: 0000000000000001
[   49.747447][  T523] RDX: 0000000000000000 RSI: ffffffffb549b941 RDI: ffffffffb4c555e0
[   49.747914][  T523] RBP: ffffc90000e87058 R08: 0000000000000000 R09: 0000000000000000
[   49.748378][  T523] R10: ffffc90000e87088 R11: ffffffffb5979160 R12: 1ffff920001d0df2
[   49.748846][  T523] R13: 00000000000005dc R14: ffffc90000e87088 R15: ffff88800cb9af08
[   49.749309][  T523] FS:  00007f95704bb800(0000) GS:ffff888078037000(0000) knlGS:0000000000000000
[   49.749849][  T523] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.750235][  T523] CR2: 00000000004e5aa8 CR3: 000000000ab6c001 CR4: 0000000000772ef0
[   49.750697][  T523] PKRU: 55555554
[   49.750946][  T523] Call Trace:
[   49.751181][  T523]  <TASK>
[ 49.751337][ T523] ? __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) 
[ 49.751742][ T523] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 49.752090][ T523] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.752395][ T523] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.752761][ T523] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.753091][ T523] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.753415][ T523] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.753758][ T523] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.754089][ T523] ? ___sys_sendmsg (net/socket.c:2670) 
[ 49.754409][ T523] ? __sys_sendmsg (net/socket.c:2700) 
[ 49.754755][ T523] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.755084][ T523] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 49.755485][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.755826][ T523] netif_set_mtu (net/core/dev.c:9652) 
[ 49.756148][ T523] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.756491][ T523] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.756748][ T523] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 49.757194][ T523] br_del_if (net/bridge/br_if.c:743) bridge 
[ 49.757551][ T523] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 49.757881][ T523] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.758212][ T523] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.758537][ T523] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 49.758968][ T523] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 49.759295][ T523] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 49.759613][ T523] ? __kernel_text_address (kernel/extable.c:79) 
[ 49.759950][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.760277][ T523] ? __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) 
[ 49.760599][ T523] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 49.761002][ T523] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.761325][ T523] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.761645][ T523] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 49.761972][ T523] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 49.762296][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.762617][ T523] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 49.762955][ T523] ? __create_object (mm/kmemleak.c:771) 
[ 49.763293][ T523] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 49.763628][ T523] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.763979][ T523] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 49.764380][ T523] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 49.764709][ T523] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 49.765045][ T523] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.765363][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.765688][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.766017][ T523] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 49.766339][ T523] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.766670][ T523] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.767010][ T523] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 49.767335][ T523] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.767658][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.767994][ T523] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 49.768313][ T523] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.768633][ T523] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 49.768987][ T523] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 49.769303][ T523] ? 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) 
[ 49.769622][ T523] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.769956][ T523] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 49.770276][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.770599][ T523] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.770939][ T523] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 49.771277][ T523] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 49.771604][ T523] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.771938][ T523] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 49.772259][ T523] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 49.772671][ T523] ___sys_sendmsg (net/socket.c:2670) 
[ 49.772999][ T523] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 49.773323][ T523] ? __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) 
[ 49.773755][ T523] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 49.774081][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.774405][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.774750][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.775077][ T523] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 49.775399][ T523] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.775738][ T523] __sys_sendmsg (net/socket.c:2700) 
[ 49.776058][ T523] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 49.776461][ T523] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 49.776802][ T523] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.777125][ T523] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.777447][ T523] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.777832][  T523] RIP: 0033:0x7f95706881e7
[ 49.778166][ T523] 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)
[   49.779333][  T523] RSP: 002b:00007fffd107b5e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.779832][  T523] RAX: ffffffffffffffda RBX: 00007fffd107bd10 RCX: 00007f95706881e7
[   49.780318][  T523] RDX: 0000000000000000 RSI: 00007fffd107b650 RDI: 0000000000000005
[   49.780811][  T523] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   49.781287][  T523] R10: 00007f9570585ee8 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