======================================
| [   18.663991][  T300] veth1: entered promiscuous mode
| [   18.666861][  T300] ------------[ cut here ]------------
| [ 18.667238][ T300] WARNING: CPU: 2 PID: 300 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) 
| [   18.668927][  T300] Modules linked in: bridge stp llc vrf veth
[   18.670808][  T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.671568][ T300] 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) 
[ 18.672180][ T300] 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
[   18.674230][  T300] RSP: 0018:ffffc90000806ef0 EFLAGS: 00010246
[   18.674989][  T300] RAX: 0000000000000000 RBX: ffff888005ab2000 RCX: 0000000000000001
[   18.675869][  T300] RDX: 0000000000000000 RSI: ffffffff9709b941 RDI: ffffffff968555e0
[   18.676736][  T300] RBP: ffffc90000806fe0 R08: 0000000000000000 R09: 0000000000000000
[   18.677620][  T300] R10: ffffc90000807010 R11: ffffffff97ea8918 R12: 1ffff92000100de2
[   18.678508][  T300] R13: 00000000000005dc R14: ffffc90000807010 R15: ffff888005ab2f08
[   18.679425][  T300] FS:  00007fde90fc5800(0000) GS:ffff8880963b7000(0000) knlGS:0000000000000000
[   18.680448][  T300] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.681205][  T300] CR2: 00000000004e5aa8 CR3: 000000000f982005 CR4: 0000000000772ef0
[   18.682064][  T300] PKRU: 55555554
[   18.682515][  T300] Call Trace:
[   18.682935][  T300]  <TASK>
[ 18.683263][ T300] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.683854][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.684489][ T300] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.685059][ T300] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.685793][ T300] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.686384][ T300] netif_set_mtu (net/core/dev.c:9652) 
[ 18.686994][ T300] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.687559][ T300] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 18.688348][ T300] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.688788][ T300] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 18.689588][ T300] br_add_if (net/bridge/br_if.c:697) bridge 
[ 18.690263][ T300] do_set_master (net/core/rtnetlink.c:2948) 
[ 18.690861][ T300] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 18.691506][ T300] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 18.692242][ T300] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.692812][ T300] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.693402][ T300] ? __kernel_text_address (kernel/extable.c:79) 
[ 18.693994][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.694600][ T300] ? __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) 
[ 18.695205][ T300] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 18.695907][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.696517][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.697116][ T300] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 18.697698][ T300] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 18.698298][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.698855][ T300] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.699446][ T300] ? __create_object (mm/kmemleak.c:771) 
[ 18.700050][ T300] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 18.700668][ T300] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 18.701290][ T300] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.701982][ T300] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 18.702582][ T300] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.703175][ T300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.703761][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.704380][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.704946][ T300] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.705538][ T300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.706125][ T300] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.706713][ T300] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.707317][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.707897][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.708518][ T300] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.709099][ T300] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.709693][ T300] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.710311][ T300] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.710885][ T300] ? 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) 
[ 18.711492][ T300] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 18.712055][ T300] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.712639][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.713234][ T300] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.713820][ T300] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.714402][ T300] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.715488][ T300] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.716072][ T300] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.716657][ T300] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.717810][ T300] ___sys_sendmsg (net/socket.c:2670) 
[ 18.718396][ T300] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 18.718976][ T300] ? __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) 
[ 18.719711][ T300] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.720312][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.720902][ T300] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.721535][ T300] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.722121][ T300] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 18.722730][ T300] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.723331][ T300] __sys_sendmsg (net/socket.c:2700) 
[ 18.723924][ T300] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 18.724663][ T300] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.725276][ T300] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.725841][ T300] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.726429][ T300] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.727578][  T300] RIP: 0033:0x7fde911921e7
[ 18.728186][ T300] 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)
[   18.730210][  T300] RSP: 002b:00007ffe5441f628 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.731103][  T300] RAX: ffffffffffffffda RBX: 00007ffe5441fd50 RCX: 00007fde911921e7
[   18.731999][  T300] RDX: 0000000000000000 RSI: 00007ffe5441f690 RDI: 0000000000000005
[   18.732908][  T300] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   18.733766][  T300] R10: 000000002860e910 R11: 0000000000000246 R12: 0000000000000004
[   18.734621][  T300] R13: 00000000686e20a1 R14: 0000000000499600 R15: 0000000000000000
| [   19.063355][  T304] ------------[ cut here ]------------
| [ 19.063921][ T304] WARNING: CPU: 2 PID: 304 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) 
| [   19.065054][  T304] Modules linked in: bridge stp llc vrf veth
| [   19.068586][  T304] Tainted: [W]=WARN
[   19.069059][  T304] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.069773][ T304] 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) 
[ 19.070208][ T304] 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
[   19.071955][  T304] RSP: 0018:ffffc900005d6ef0 EFLAGS: 00010246
[   19.072482][  T304] RAX: 0000000000000000 RBX: ffff888005ab2000 RCX: 0000000000000001
[   19.073117][  T304] RDX: 0000000000000000 RSI: ffffffff9709b941 RDI: ffffffff968555e0
[   19.073849][  T304] RBP: ffffc900005d6fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.074687][  T304] R10: ffffc900005d7010 R11: ffffffff97ea8918 R12: 1ffff920000bade2
[   19.075558][  T304] R13: 00000000000005dc R14: ffffc900005d7010 R15: ffff888005ab2f08
[   19.076426][  T304] FS:  00007f1425819800(0000) GS:ffff8880963b7000(0000) knlGS:0000000000000000
[   19.077411][  T304] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.078093][  T304] CR2: 00000000004e5ab0 CR3: 000000000e5b2004 CR4: 0000000000772ef0
[   19.078630][  T304] PKRU: 55555554
[   19.079057][  T304] Call Trace:
[   19.079471][  T304]  <TASK>
[ 19.079671][ T304] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.080114][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.080626][ T304] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.081063][ T304] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.081701][ T304] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.082125][ T304] netif_set_mtu (net/core/dev.c:9652) 
[ 19.082466][ T304] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.082882][ T304] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.083348][ T304] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.083612][ T304] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.084048][ T304] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.084446][ T304] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.084904][ T304] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.085514][ T304] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.086221][ T304] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.086644][ T304] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.087134][ T304] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.087742][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.088327][ T304] ? __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) 
[ 19.088907][ T304] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.089631][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.090231][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.090810][ T304] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.091421][ T304] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.091986][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.092601][ T304] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.093174][ T304] ? __create_object (mm/kmemleak.c:771) 
[ 19.093773][ T304] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.094373][ T304] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.094937][ T304] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.095661][ T304] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.096289][ T304] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.096887][ T304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.097488][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.098069][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.098659][ T304] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.099238][ T304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.099818][ T304] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.100441][ T304] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.101043][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.101646][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.102252][ T304] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.102822][ T304] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.103421][ T304] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.104017][ T304] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.104632][ T304] ? 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) 
[ 19.105236][ T304] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.105819][ T304] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.106420][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.106997][ T304] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.107596][ T304] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.108184][ T304] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.108815][ T304] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.109419][ T304] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.109987][ T304] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.110711][ T304] ___sys_sendmsg (net/socket.c:2670) 
[ 19.111297][ T304] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.111848][ T304] ? __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) 
[ 19.112602][ T304] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.113224][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.113808][ T304] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.114404][ T304] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.114958][ T304] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.115497][ T304] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.116087][ T304] __sys_sendmsg (net/socket.c:2700) 
[ 19.116707][ T304] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.117444][ T304] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.118031][ T304] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.118624][ T304] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.119213][ T304] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.119914][  T304] RIP: 0033:0x7f14259e61e7
[ 19.120553][ T304] 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)
[   19.122588][  T304] RSP: 002b:00007ffd355d94c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.123417][  T304] RAX: ffffffffffffffda RBX: 00007ffd355d9bf0 RCX: 00007f14259e61e7
[   19.124322][  T304] RDX: 0000000000000000 RSI: 00007ffd355d9530 RDI: 0000000000000005
[   19.125184][  T304] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.126055][  T304] R10: 0000000002916910 R11: 0000000000000246 R12: 0000000000000004
[   19.126913][  T304] R13: 00000000686e20a1 R14: 0000000000499600 R15: 0000000000000000
| [   49.125714][  T521] ------------[ cut here ]------------
| [ 49.126038][ 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) 
| [   49.126671][  T521] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   49.128009][  T521] Tainted: [W]=WARN
[   49.128252][  T521] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.128638][ 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) 
[ 49.128955][ 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
[   49.130052][  T521] RSP: 0018:ffffc90000e46f70 EFLAGS: 00010246
[   49.130450][  T521] RAX: 0000000000000000 RBX: ffff888005ab2000 RCX: 0000000000000001
[   49.130934][  T521] RDX: 0000000000000000 RSI: ffffffff9709b941 RDI: ffffffff968555e0
[   49.131637][  T521] RBP: ffffc90000e47058 R08: 0000000000000000 R09: 0000000000000000
[   49.132106][  T521] R10: ffffc90000e47088 R11: ffffffff93400130 R12: 1ffff920001c8df2
[   49.132709][  T521] R13: 00000000000005dc R14: ffffc90000e47088 R15: ffff888005ab2f08
[   49.133163][  T521] FS:  00007f8519d06800(0000) GS:ffff888096437000(0000) knlGS:0000000000000000
[   49.134012][  T521] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.134464][  T521] CR2: 00000000004e5ab0 CR3: 000000000e629004 CR4: 0000000000772ef0
[   49.134922][  T521] PKRU: 55555554
[   49.135156][  T521] Call Trace:
[   49.135394][  T521]  <TASK>
[ 49.135551][ 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) 
[ 49.135946][ T521] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 49.136316][ T521] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.136621][ T521] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.136929][ T521] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.137238][ T521] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.137541][ T521] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.137841][ T521] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.138160][ T521] ? ___sys_sendmsg (net/socket.c:2670) 
[ 49.138468][ T521] ? __sys_sendmsg (net/socket.c:2700) 
[ 49.138767][ T521] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.139076][ T521] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 49.139463][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.139777][ T521] netif_set_mtu (net/core/dev.c:9652) 
[ 49.140085][ T521] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.140412][ T521] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.140652][ T521] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 49.141087][ T521] br_del_if (net/bridge/br_if.c:743) bridge 
[ 49.141434][ T521] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 49.141739][ T521] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.142045][ T521] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.142379][ T521] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 49.142767][ T521] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 49.143083][ T521] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 49.143396][ T521] ? __kernel_text_address (kernel/extable.c:79) 
[ 49.143707][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.144015][ 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) 
[ 49.144327][ T521] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 49.144705][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.145012][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.145335][ T521] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 49.145638][ T521] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 49.145941][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.146257][ T521] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 49.146557][ T521] ? __create_object (mm/kmemleak.c:771) 
[ 49.146861][ T521] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 49.147168][ T521] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.147491][ T521] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 49.147878][ T521] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 49.148203][ T521] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 49.148514][ T521] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.148818][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.149160][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.149477][ T521] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 49.149776][ T521] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.150085][ T521] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.150407][ T521] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 49.150710][ T521] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.151027][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.151354][ T521] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 49.151658][ T521] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.151965][ T521] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 49.152292][ T521] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 49.152606][ 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) 
[ 49.152913][ T521] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.153236][ T521] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 49.153538][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.153849][ T521] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.154158][ T521] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 49.154475][ T521] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 49.154806][ T521] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.155114][ T521] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 49.155434][ T521] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 49.155823][ T521] ___sys_sendmsg (net/socket.c:2670) 
[ 49.156124][ T521] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 49.156441][ 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) 
[ 49.156820][ T521] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 49.157134][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.157450][ T521] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.157761][ T521] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.158064][ 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) 
[ 49.158381][ T521] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.158692][ T521] __sys_sendmsg (net/socket.c:2700) 
[ 49.158993][ T521] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 49.159534][ T521] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 49.159862][ T521] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.160168][ T521] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.160485][ T521] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.160861][  T521] RIP: 0033:0x7f8519ed31e7
[ 49.161185][ 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)
[   49.162294][  T521] RSP: 002b:00007fffbadfe348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.162757][  T521] RAX: ffffffffffffffda RBX: 00007fffbadfea70 RCX: 00007f8519ed31e7
[   49.163228][  T521] RDX: 0000000000000000 RSI: 00007fffbadfe3b0 RDI: 0000000000000005
[   49.163688][  T521] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   49.164153][  T521] R10: 00007f8519dd0ee8 R11: 0000000000000246 R12: 0000000000000003
[   49.164620][  T521] R13: 00000000686e20bf R14: 0000000000499600 R15: 0000000000000000
| [   49.382273][  T523] ------------[ cut here ]------------
| [ 49.382620][ T523] WARNING: CPU: 2 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) 
| [   49.383254][  T523] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc vrf veth
| [   49.384468][  T523] Tainted: [W]=WARN
[   49.384717][  T523] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.385110][ 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) 
[ 49.385448][ 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
[   49.386552][  T523] RSP: 0018:ffffc90000e66f70 EFLAGS: 00010246
[   49.386946][  T523] RAX: 0000000000000000 RBX: ffff888005ab2000 RCX: 0000000000000001
[   49.387423][  T523] RDX: 0000000000000000 RSI: ffffffff9709b941 RDI: ffffffff968555e0
[   49.387891][  T523] RBP: ffffc90000e67058 R08: 0000000000000000 R09: 0000000000000000
[   49.388495][  T523] R10: ffffc90000e67088 R11: ffffffff97579160 R12: 1ffff920001ccdf2
[   49.388962][  T523] R13: 00000000000005dc R14: ffffc90000e67088 R15: ffff888005ab2f08
[   49.390266][  T523] FS:  00007fe26e3b3800(0000) GS:ffff8880963b7000(0000) knlGS:0000000000000000
[   49.390811][  T523] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.391231][  T523] CR2: 00000000004e5aa8 CR3: 000000000bd33001 CR4: 0000000000772ef0
[   49.391701][  T523] PKRU: 55555554
[   49.391940][  T523] Call Trace:
[   49.392198][  T523]  <TASK>
[ 49.392366][ 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) 
[ 49.392764][ T523] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 49.393122][ T523] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.393459][ T523] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.393805][ T523] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.394119][ T523] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.394451][ T523] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.394766][ T523] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.395085][ T523] ? ___sys_sendmsg (net/socket.c:2670) 
[ 49.395416][ T523] ? __sys_sendmsg (net/socket.c:2700) 
[ 49.395731][ T523] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.396053][ T523] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 49.396455][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.396787][ T523] netif_set_mtu (net/core/dev.c:9652) 
[ 49.397113][ T523] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.397456][ T523] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.397702][ T523] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 49.398137][ T523] br_del_if (net/bridge/br_if.c:743) bridge 
[ 49.398505][ T523] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 49.398823][ T523] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 49.399153][ T523] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 49.399482][ T523] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 49.399887][ T523] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 49.400215][ T523] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 49.400528][ T523] ? __kernel_text_address (kernel/extable.c:79) 
[ 49.400856][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.401268][ 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) 
[ 49.401593][ T523] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 49.401979][ T523] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.402317][ T523] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.402636][ T523] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 49.403040][ T523] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 49.403379][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.403698][ T523] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 49.404012][ T523] ? __create_object (mm/kmemleak.c:771) 
[ 49.404341][ T523] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 49.404666][ T523] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.404984][ T523] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 49.405402][ T523] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 49.405731][ T523] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 49.406057][ T523] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.406384][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.406707][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.407028][ T523] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 49.407352][ T523] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.407685][ T523] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.408001][ T523] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 49.408331][ T523] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.408682][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.409003][ T523] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 49.409328][ T523] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.409647][ T523] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 49.409971][ T523] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 49.410296][ 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) 
[ 49.410613][ T523] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 49.410936][ T523] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 49.411274][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.411597][ T523] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.411916][ T523] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 49.412243][ T523] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 49.412565][ T523] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.412884][ T523] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 49.413236][ T523] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 49.413637][ T523] ___sys_sendmsg (net/socket.c:2670) 
[ 49.413950][ T523] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 49.414279][ 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) 
[ 49.414669][ T523] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 49.414990][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.415317][ T523] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.415645][ T523] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.415961][ 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) 
[ 49.416289][ T523] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.416614][ T523] __sys_sendmsg (net/socket.c:2700) 
[ 49.416928][ T523] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 49.417327][ T523] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 49.417656][ T523] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.417980][ T523] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.418306][ T523] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.418702][  T523] RIP: 0033:0x7fe26e5801e7
[ 49.419068][ 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)
[   49.420168][  T523] RSP: 002b:00007ffe073609e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.420656][  T523] RAX: ffffffffffffffda RBX: 00007ffe07361110 RCX: 00007fe26e5801e7
[   49.421133][  T523] RDX: 0000000000000000 RSI: 00007ffe07360a50 RDI: 0000000000000005
[   49.421606][  T523] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   49.422140][  T523] R10: 00007fe26e47dee8 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