======================================
| [   19.430479][  T310] veth1: entered promiscuous mode
| [   19.432703][  T310] ------------[ cut here ]------------
| [ 19.433075][ T310] WARNING: CPU: 2 PID: 310 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   19.433745][  T310] Modules linked in: bridge stp llc vrf veth
[   19.434872][  T310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.435322][ T310] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 19.435722][ T310] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   19.436910][  T310] RSP: 0018:ffffc90000766ef0 EFLAGS: 00010246
[   19.437328][  T310] RAX: 0000000000000000 RBX: ffff888004f42000 RCX: 0000000000000001
[   19.437860][  T310] RDX: 0000000000000000 RSI: ffffffffa049b941 RDI: ffffffff9fc555e0
[   19.438352][  T310] RBP: ffffc90000766fe0 R08: 0000000000000000 R09: 0000000000000000
[   19.438866][  T310] R10: ffffc90000767010 R11: ffffffffa12a8918 R12: 1ffff920000ecde2
[   19.439672][  T310] R13: 00000000000005dc R14: ffffc90000767010 R15: ffff888004f42f08
[   19.440185][  T310] FS:  00007f1214a05800(0000) GS:ffff888093db7000(0000) knlGS:0000000000000000
[   19.440771][  T310] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.441198][  T310] CR2: 00000000004e5aa8 CR3: 000000000cf14002 CR4: 0000000000772ef0
[   19.441714][  T310] PKRU: 55555554
[   19.441982][  T310] Call Trace:
[   19.442232][  T310]  <TASK>
[ 19.442408][ T310] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.442799][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.443161][ T310] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 19.443491][ T310] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 19.443911][ T310] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 19.444258][ T310] netif_set_mtu (net/core/dev.c:9652) 
[ 19.444598][ T310] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.444950][ T310] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 19.445425][ T310] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.445691][ T310] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 19.446159][ T310] br_add_if (net/bridge/br_if.c:697) bridge 
[ 19.446536][ T310] do_set_master (net/core/rtnetlink.c:2948) 
[ 19.446881][ T310] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 19.447222][ T310] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 19.447635][ T310] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 19.447996][ T310] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 19.448327][ T310] ? __kernel_text_address (kernel/extable.c:79) 
[ 19.448656][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.448993][ T310] ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113) 
[ 19.449324][ T310] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 19.449740][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.450071][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.450396][ T310] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 19.450731][ T310] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 19.451056][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.451381][ T310] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.451711][ T310] ? __create_object (mm/kmemleak.c:771) 
[ 19.452069][ T310] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 19.452423][ T310] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 19.452773][ T310] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.453192][ T310] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 19.453546][ T310] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.453905][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.454248][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.454598][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.454942][ T310] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.455269][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.455593][ T310] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.455935][ T310] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.456294][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.456919][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.457251][ T310] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.457574][ T310] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.457928][ T310] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.458263][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.458592][ T310] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 19.458925][ T310] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 19.459253][ T310] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.460043][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.460381][ T310] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.460715][ T310] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.461041][ T310] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.461374][ T310] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.461711][ T310] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.462033][ T310] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.462442][ T310] ___sys_sendmsg (net/socket.c:2670) 
[ 19.462774][ T310] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 19.463332][ T310] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 19.463753][ T310] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.464093][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.464419][ T310] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.464768][ T310] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 19.465567][ T310] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 19.465911][ T310] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.466273][ T310] __sys_sendmsg (net/socket.c:2700) 
[ 19.466628][ T310] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 19.467041][ T310] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.467394][ T310] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.467741][ T310] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.468072][ T310] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.468481][  T310] RIP: 0033:0x7f1214bd21e7
[ 19.468853][ T310] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   19.470029][  T310] RSP: 002b:00007fff609e16f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.470512][  T310] RAX: ffffffffffffffda RBX: 00007fff609e1e20 RCX: 00007f1214bd21e7
[   19.471234][  T310] RDX: 0000000000000000 RSI: 00007fff609e1760 RDI: 0000000000000005
[   19.471726][  T310] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   19.472212][  T310] R10: 00000000317e0910 R11: 0000000000000246 R12: 0000000000000004
[   19.472697][  T310] R13: 00000000686e2003 R14: 0000000000499600 R15: 0000000000000000
| [   29.310998][  T363] ------------[ cut here ]------------
| [ 29.311708][ T363] WARNING: CPU: 2 PID: 363 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) 
| [   29.312925][  T363] Modules linked in: bridge stp llc vrf veth
| [   29.316526][  T363] Tainted: [W]=WARN
[   29.317044][  T363] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 29.317844][ T363] 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) 
[ 29.318475][ T363] 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
[   29.319965][  T363] RSP: 0018:ffffc900007c6f70 EFLAGS: 00010246
[   29.320410][  T363] RAX: 0000000000000000 RBX: ffff888004f42000 RCX: 0000000000000001
[   29.321216][  T363] RDX: 0000000000000000 RSI: ffffffffa049b941 RDI: ffffffff9fc555e0
[   29.322136][  T363] RBP: ffffc900007c7058 R08: 0000000000000000 R09: 0000000000000000
[   29.322917][  T363] R10: ffffc900007c7088 R11: ffffffff9c800130 R12: 1ffff920000f8df2
[   29.323468][  T363] R13: 00000000000005dc R14: ffffc900007c7088 R15: ffff888004f42f08
[   29.324247][  T363] FS:  00007f30dd3f5800(0000) GS:ffff888093db7000(0000) knlGS:0000000000000000
[   29.325193][  T363] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.325888][  T363] CR2: 00000000004e5aa8 CR3: 000000000e638001 CR4: 0000000000772ef0
[   29.326447][  T363] PKRU: 55555554
[   29.326748][  T363] Call Trace:
[   29.327016][  T363]  <TASK>
[ 29.327204][ T363] ? __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) 
[ 29.327653][ T363] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 29.328146][ T363] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 29.328503][ T363] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 29.328875][ T363] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 29.329222][ T363] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 29.329571][ T363] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.329932][ T363] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.330282][ T363] ? ___sys_sendmsg (net/socket.c:2670) 
[ 29.330629][ T363] ? __sys_sendmsg (net/socket.c:2700) 
[ 29.330984][ T363] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.331333][ T363] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 29.331770][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.332129][ T363] netif_set_mtu (net/core/dev.c:9652) 
[ 29.332482][ T363] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 29.332876][ T363] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 29.333148][ T363] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 29.333638][ T363] br_del_if (net/bridge/br_if.c:743) bridge 
[ 29.334037][ T363] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 29.334388][ T363] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 29.334749][ T363] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 29.335099][ T363] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 29.335533][ T363] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 29.335890][ T363] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 29.336241][ T363] ? __kernel_text_address (kernel/extable.c:79) 
[ 29.336594][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.336975][ T363] ? __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) 
[ 29.337330][ T363] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 29.337787][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.338139][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.338486][ T363] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 29.338851][ T363] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 29.339205][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.339553][ T363] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 29.339912][ T363] ? __create_object (mm/kmemleak.c:771) 
[ 29.340264][ T363] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 29.340613][ T363] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 29.340988][ T363] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 29.341425][ T363] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 29.341798][ T363] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 29.342158][ T363] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.342503][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.342870][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.343216][ T363] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 29.343558][ T363] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.343916][ T363] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.344266][ T363] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 29.344619][ T363] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.344996][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.345353][ T363] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 29.345713][ T363] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.346065][ T363] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 29.346423][ T363] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 29.346780][ T363] ? 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) 
[ 29.347136][ T363] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 29.347487][ T363] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 29.347861][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.348219][ T363] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.348569][ T363] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 29.348941][ T363] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 29.349296][ T363] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.349652][ T363] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 29.350011][ T363] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 29.350453][ T363] ___sys_sendmsg (net/socket.c:2670) 
[ 29.350805][ T363] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 29.351156][ T363] ? __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) 
[ 29.351582][ T363] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 29.351946][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.352300][ T363] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.352654][ T363] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 29.353028][ T363] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 29.353379][ T363] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.353742][ T363] __sys_sendmsg (net/socket.c:2700) 
[ 29.354088][ T363] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 29.354518][ T363] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 29.354896][ T363] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.355246][ T363] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.355597][ T363] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.356040][  T363] RIP: 0033:0x7f30dd5c21e7
[ 29.356402][ T363] 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)
[   29.357630][  T363] RSP: 002b:00007ffced0fa4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.358184][  T363] RAX: ffffffffffffffda RBX: 00007ffced0fabf0 RCX: 00007f30dd5c21e7
[   29.358715][  T363] RDX: 0000000000000000 RSI: 00007ffced0fa530 RDI: 0000000000000005
[   29.359231][  T363] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   29.359761][  T363] R10: 00007f30dd4bfee8 R11: 0000000000000246 R12: 0000000000000003
[   29.360273][  T363] R13: 00000000686e200d R14: 0000000000499600 R15: 0000000000000000
| [   31.578789][  T365] ------------[ cut here ]------------
| [ 31.579135][ T365] WARNING: CPU: 3 PID: 365 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) 
| [   31.580987][  T365] Modules linked in: bridge stp llc vrf veth
| [   31.582134][  T365] Tainted: [W]=WARN
[   31.582393][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.582818][ T365] 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) 
[ 31.583166][ T365] 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
[   31.584390][  T365] RSP: 0018:ffffc900007e6ef0 EFLAGS: 00010246
[   31.584824][  T365] RAX: 0000000000000000 RBX: ffff888004f42000 RCX: 0000000000000001
[   31.585326][  T365] RDX: 0000000000000000 RSI: ffffffffa049b941 RDI: ffffffff9fc555e0
[   31.585835][  T365] RBP: ffffc900007e6fe0 R08: 0000000000000000 R09: 0000000000000000
[   31.586333][  T365] R10: ffffc900007e7010 R11: ffffffffa12a8918 R12: 1ffff920000fcde2
[   31.586846][  T365] R13: 00000000000005dc R14: ffffc900007e7010 R15: ffff888004f42f08
[   31.587348][  T365] FS:  00007fe36f3eb800(0000) GS:ffff888093e37000(0000) knlGS:0000000000000000
[   31.587960][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.588389][  T365] CR2: 00000000004e5aa8 CR3: 000000000e60b003 CR4: 0000000000772ef0
[   31.588904][  T365] PKRU: 55555554
[   31.589159][  T365] Call Trace:
[   31.589410][  T365]  <TASK>
[ 31.589585][ T365] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.589931][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.590280][ T365] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 31.590617][ T365] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 31.591048][ T365] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 31.591388][ T365] netif_set_mtu (net/core/dev.c:9652) 
[ 31.591733][ T365] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.592080][ T365] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 31.592553][ T365] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.592819][ T365] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 31.593282][ T365] br_add_if (net/bridge/br_if.c:697) bridge 
[ 31.593663][ T365] do_set_master (net/core/rtnetlink.c:2948) 
[ 31.594019][ T365] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 31.594364][ T365] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 31.594798][ T365] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 31.595136][ T365] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 31.595471][ T365] ? __kernel_text_address (kernel/extable.c:79) 
[ 31.595825][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.596162][ T365] ? __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) 
[ 31.596500][ T365] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 31.596931][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.597269][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.597606][ T365] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 31.597967][ T365] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 31.598306][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.598644][ T365] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.598987][ T365] ? __create_object (mm/kmemleak.c:771) 
[ 31.599329][ T365] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 31.599677][ T365] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 31.600027][ T365] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 31.600450][ T365] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 31.600811][ T365] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.601156][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.601493][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.601848][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.602186][ T365] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.602519][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.602873][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.603210][ T365] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.603549][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.603892][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.604233][ T365] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.604569][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.604920][ T365] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.605266][ T365] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.605602][ T365] ? 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) 
[ 31.605957][ T365] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 31.606297][ T365] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.606633][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.606992][ T365] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.607330][ T365] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.607668][ T365] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.608034][ T365] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.608378][ T365] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.608724][ T365] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.609193][ T365] ___sys_sendmsg (net/socket.c:2670) 
[ 31.609530][ T365] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 31.609887][ T365] ? __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) 
[ 31.610309][ T365] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.610650][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.611010][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.611355][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 31.611709][ T365] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 31.612050][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.612390][ T365] __sys_sendmsg (net/socket.c:2700) 
[ 31.612737][ T365] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 31.613155][ T365] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.613502][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.613855][ T365] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.614195][ T365] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.614610][  T365] RIP: 0033:0x7fe36f5b81e7
[ 31.614972][ T365] 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)
[   31.616181][  T365] RSP: 002b:00007ffd8d6298a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.616711][  T365] RAX: ffffffffffffffda RBX: 00007ffd8d629fd0 RCX: 00007fe36f5b81e7
[   31.617221][  T365] RDX: 0000000000000000 RSI: 00007ffd8d629910 RDI: 0000000000000005
[   31.617749][  T365] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   31.618269][  T365] R10: 0000000032333910 R11: 0000000000000246 R12: 0000000000000004
[   31.618793][  T365] R13: 00000000686e200f R14: 0000000000499600 R15: 0000000000000000
| [   53.108490][  T472] ------------[ cut here ]------------
| [ 53.108893][ T472] WARNING: CPU: 0 PID: 472 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) 
| [   53.109582][  T472] Modules linked in: bridge stp llc vrf veth
| [   53.111106][  T472] Tainted: [W]=WARN
[   53.111363][  T472] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 53.111802][ T472] 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) 
[ 53.112156][ T472] 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
[   53.113378][  T472] RSP: 0018:ffffc90000d76f70 EFLAGS: 00010246
[   53.113821][  T472] RAX: 0000000000000000 RBX: ffff888004f42000 RCX: 0000000000000001
[   53.114335][  T472] RDX: 0000000000000000 RSI: ffffffffa049b941 RDI: ffffffff9fc555e0
[   53.114857][  T472] RBP: ffffc90000d77058 R08: 0000000000000000 R09: 0000000000000000
[   53.115366][  T472] R10: ffffc90000d77088 R11: ffffffffa0979160 R12: 1ffff920001aedf2
[   53.115883][  T472] R13: 00000000000005dc R14: ffffc90000d77088 R15: ffff888004f42f08
[   53.116398][  T472] FS:  00007f4850dbe800(0000) GS:ffff888093cb7000(0000) knlGS:0000000000000000
[   53.117011][  T472] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   53.117443][  T472] CR2: 00000000004e5aa8 CR3: 000000000bf0b001 CR4: 0000000000772ef0
[   53.117978][  T472] PKRU: 55555554
[   53.118240][  T472] Call Trace:
[   53.118491][  T472]  <TASK>
[ 53.118663][ T472] ? __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) 
[ 53.119107][ T472] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 53.119498][ T472] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 53.119851][ T472] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 53.120194][ T472] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 53.120542][ T472] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 53.120889][ T472] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 53.121222][ T472] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 53.121557][ T472] ? ___sys_sendmsg (net/socket.c:2670) 
[ 53.121899][ T472] ? __sys_sendmsg (net/socket.c:2700) 
[ 53.122235][ T472] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 53.122576][ T472] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 53.123007][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.123353][ T472] netif_set_mtu (net/core/dev.c:9652) 
[ 53.123705][ T472] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 53.124054][ T472] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 53.124308][ T472] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 53.124778][ T472] br_del_if (net/bridge/br_if.c:743) bridge 
[ 53.125146][ T472] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 53.125478][ T472] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 53.125833][ T472] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 53.126164][ T472] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 53.126582][ T472] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 53.126923][ T472] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 53.127250][ T472] ? __kernel_text_address (kernel/extable.c:79) 
[ 53.127592][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 53.127954][ T472] ? __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) 
[ 53.128290][ T472] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 53.128713][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.129048][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.129378][ T472] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 53.129725][ T472] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 53.130062][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.130390][ T472] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 53.130768][ T472] ? __create_object (mm/kmemleak.c:771) 
[ 53.131108][ T472] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 53.131437][ T472] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 53.131791][ T472] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 53.132206][ T472] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 53.132547][ T472] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 53.132903][ T472] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 53.133231][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 53.133572][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.133918][ T472] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 53.134241][ T472] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 53.134576][ T472] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 53.134923][ T472] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 53.135258][ T472] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 53.135591][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 53.135942][ T472] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 53.136281][ T472] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 53.136628][ T472] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 53.136986][ T472] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 53.137314][ T472] ? 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) 
[ 53.137655][ T472] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 53.138026][ T472] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 53.138364][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 53.138718][ T472] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 53.139054][ T472] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 53.139384][ T472] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 53.139739][ T472] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 53.140080][ T472] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 53.140408][ T472] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 53.140864][ T472] ___sys_sendmsg (net/socket.c:2670) 
[ 53.141208][ T472] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 53.141540][ T472] ? __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) 
[ 53.141962][ T472] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 53.142298][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.142631][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 53.142976][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 53.143307][ T472] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 53.143662][ T472] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 53.144013][ T472] __sys_sendmsg (net/socket.c:2700) 
[ 53.144348][ T472] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 53.144784][ T472] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 53.145129][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 53.145462][ T472] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 53.145813][ T472] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   53.146225][  T472] RIP: 0033:0x7f4850f8b1e7
[ 53.146593][ T472] 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)
[   53.147929][  T472] RSP: 002b:00007ffc157b4788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   53.148454][  T472] RAX: ffffffffffffffda RBX: 00007ffc157b4eb0 RCX: 00007f4850f8b1e7
[   53.148975][  T472] RDX: 0000000000000000 RSI: 00007ffc157b47f0 RDI: 0000000000000005
[   53.149482][  T472] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   53.149989][  T472] R10: 00007f4850e88ee8 R11: 0000000000000246 R12: 0000000000000003
[   53.150482][  T472] R13: 00000000686e2024 R14: 0000000000499600 R15: 0000000000000000
| [   55.494901][  T475] ------------[ cut here ]------------
| [ 55.495211][ T475] WARNING: CPU: 0 PID: 475 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) 
| [   55.495834][  T475] Modules linked in: bridge stp llc vrf veth
| [   55.497314][  T475] Tainted: [W]=WARN
[   55.497548][  T475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 55.497951][ T475] 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) 
[ 55.498268][ T475] 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
[   55.499370][  T475] RSP: 0018:ffffc90000db6ef0 EFLAGS: 00010246
[   55.499777][  T475] RAX: 0000000000000000 RBX: ffff888004f42000 RCX: 0000000000000001
[   55.500238][  T475] RDX: 0000000000000000 RSI: ffffffffa049b941 RDI: ffffffff9fc555e0
[   55.500711][  T475] RBP: ffffc90000db6fe0 R08: 0000000000000000 R09: 0000000000000000
[   55.501171][  T475] R10: ffffc90000db7010 R11: ffffffffa12a8918 R12: 1ffff920001b6de2
[   55.501626][  T475] R13: 00000000000005dc R14: ffffc90000db7010 R15: ffff888004f42f08
[   55.502091][  T475] FS:  00007fa9505d5800(0000) GS:ffff888093cb7000(0000) knlGS:0000000000000000
[   55.502634][  T475] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   55.503030][  T475] CR2: 00000000004e5aa8 CR3: 00000000098a3004 CR4: 0000000000772ef0
[   55.503491][  T475] PKRU: 55555554
[   55.503738][  T475] Call Trace:
[   55.503971][  T475]  <TASK>
[ 55.504133][ T475] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 55.504441][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.504768][ T475] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 55.505075][ T475] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 55.505461][ T475] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 55.505780][ T475] netif_set_mtu (net/core/dev.c:9652) 
[ 55.506087][ T475] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 55.506406][ T475] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 55.506850][ T475] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 55.507092][ T475] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 55.507512][ T475] br_add_if (net/bridge/br_if.c:697) bridge 
[ 55.507893][ T475] do_set_master (net/core/rtnetlink.c:2948) 
[ 55.508210][ T475] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 55.508524][ T475] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 55.508922][ T475] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 55.509229][ T475] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 55.509539][ T475] ? __kernel_text_address (kernel/extable.c:79) 
[ 55.509866][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.510174][ T475] ? __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) 
[ 55.510481][ T475] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 55.510868][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.511179][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.511482][ T475] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 55.511816][ T475] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 55.512126][ T475] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 55.512431][ T475] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 55.512746][ T475] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 55.513053][ T475] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 55.513441][ T475] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 55.513764][ T475] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 55.514085][ T475] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.514392][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.514720][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.515033][ T475] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 55.515334][ T475] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.515641][ T475] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 55.515973][ T475] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 55.516285][ T475] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.516604][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.516925][ T475] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 55.517239][ T475] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 55.517547][ T475] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 55.518029][ T475] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 55.518341][ T475] ? 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) 
[ 55.518650][ T475] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 55.518981][ T475] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 55.519286][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.519597][ T475] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 55.519939][ T475] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 55.520247][ T475] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 55.520560][ T475] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 55.520879][ T475] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 55.521191][ T475] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 55.521584][ T475] ___sys_sendmsg (net/socket.c:2670) 
[ 55.521898][ T475] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 55.522207][ T475] ? __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) 
[ 55.522597][ T475] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 55.522918][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.523229][ T475] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 55.523548][ T475] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 55.523876][ T475] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 55.524183][ T475] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 55.524499][ T475] __sys_sendmsg (net/socket.c:2700) 
[ 55.524824][ T475] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 55.525202][ T475] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 55.525522][ T475] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 55.525850][ T475] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 55.526176][ T475] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   55.526561][  T475] RIP: 0033:0x7fa9507a21e7
[ 55.526888][ T475] 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)
[   55.528021][  T475] RSP: 002b:00007fff6a9a23f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   55.528495][  T475] RAX: ffffffffffffffda RBX: 00007fff6a9a2b20 RCX: 00007fa9507a21e7
[   55.528972][  T475] RDX: 0000000000000000 RSI: 00007fff6a9a2460 RDI: 0000000000000005
[   55.529430][  T475] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   55.529900][  T475] R10: 000000003c987910 R11: 0000000000000246 R12: 0000000000000004
[   55.530374][  T475] R13: 00000000686e2027 R14: 0000000000499600 R15: 0000000000000000
| [   59.537555][  T517] ------------[ cut here ]------------
| [ 59.538867][ T517] WARNING: CPU: 2 PID: 517 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) 
| [   59.539511][  T517] Modules linked in: bridge stp llc vrf veth
| [   59.540588][  T517] Tainted: [W]=WARN
[   59.540846][  T517] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 59.541253][ T517] 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) 
[ 59.541590][ T517] 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
[   59.542719][  T517] RSP: 0018:ffffc90000fb6f70 EFLAGS: 00010246
[   59.543124][  T517] RAX: 0000000000000000 RBX: ffff888004f42000 RCX: 0000000000000001
[   59.543600][  T517] RDX: 0000000000000000 RSI: ffffffffa049b941 RDI: ffffffff9fc555e0
[   59.544095][  T517] RBP: ffffc90000fb7058 R08: 0000000000000000 R09: 0000000000000000
[   59.544569][  T517] R10: ffffc90000fb7088 R11: ffffffffa0979160 R12: 1ffff920001f6df2
[   59.545054][  T517] R13: 00000000000005dc R14: ffffc90000fb7088 R15: ffff888004f42f08
[   59.545535][  T517] FS:  00007f035554f800(0000) GS:ffff888093db7000(0000) knlGS:0000000000000000
[   59.546095][  T517] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   59.546493][  T517] CR2: 00000000004e5aa8 CR3: 000000000cd23001 CR4: 0000000000772ef0
[   59.546982][  T517] PKRU: 55555554
[   59.547227][  T517] Call Trace:
[   59.547473][  T517]  <TASK>
[ 59.547646][ T517] ? __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) 
[ 59.548082][ T517] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 59.548452][ T517] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 59.548785][ T517] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 59.549102][ T517] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 59.549426][ T517] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 59.549764][ T517] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 59.550091][ T517] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 59.550419][ T517] ? ___sys_sendmsg (net/socket.c:2670) 
[ 59.550752][ T517] ? __sys_sendmsg (net/socket.c:2700) 
[ 59.551081][ T517] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 59.551404][ T517] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 59.551821][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.552156][ T517] netif_set_mtu (net/core/dev.c:9652) 
[ 59.552504][ T517] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 59.552854][ T517] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 59.553105][ T517] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 59.553540][ T517] br_del_if (net/bridge/br_if.c:743) bridge 
[ 59.553904][ T517] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 59.554227][ T517] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 59.554553][ T517] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 59.554894][ T517] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 59.555299][ T517] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 59.555618][ T517] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 59.555950][ T517] ? __kernel_text_address (kernel/extable.c:79) 
[ 59.556272][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.556594][ T517] ? __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) 
[ 59.556926][ T517] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 59.557331][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.557651][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.558003][ T517] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 59.558324][ T517] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 59.558646][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.558989][ T517] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 59.559309][ T517] ? __create_object (mm/kmemleak.c:771) 
[ 59.559632][ T517] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 59.559970][ T517] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 59.560290][ T517] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 59.560696][ T517] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 59.561020][ T517] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 59.561344][ T517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 59.561663][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.562001][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.562320][ T517] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 59.562647][ T517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.562979][ T517] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 59.563298][ T517] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 59.563627][ T517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 59.563965][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.564287][ T517] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 59.564607][ T517] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 59.564951][ T517] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 59.565279][ T517] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 59.565598][ T517] ? 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) 
[ 59.565929][ T517] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 59.566252][ T517] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 59.566569][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.566908][ T517] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 59.567232][ T517] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 59.567552][ T517] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 59.567926][ T517] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 59.568253][ T517] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 59.568572][ T517] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 59.568995][ T517] ___sys_sendmsg (net/socket.c:2670) 
[ 59.569310][ T517] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 59.569635][ T517] ? __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) 
[ 59.570043][ T517] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 59.570367][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.570698][ T517] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 59.571028][ T517] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 59.571346][ T517] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 59.571664][ T517] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 59.572007][ T517] __sys_sendmsg (net/socket.c:2700) 
[ 59.572327][ T517] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 59.572725][ T517] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 59.573059][ T517] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 59.573376][ T517] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 59.573705][ T517] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   59.574092][  T517] RIP: 0033:0x7f035571c1e7
[ 59.574422][ T517] 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)
[   59.575534][  T517] RSP: 002b:00007ffc4e990aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   59.576023][  T517] RAX: ffffffffffffffda RBX: 00007ffc4e9911d0 RCX: 00007f035571c1e7
[   59.576496][  T517] RDX: 0000000000000000 RSI: 00007ffc4e990b10 RDI: 0000000000000005
[   59.576974][  T517] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   59.577447][  T517] R10: 00007f0355619ee8 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