======================================
| [   61.796250][  T781] veth1: entered promiscuous mode
| [   61.799072][  T781] ------------[ cut here ]------------
| [ 61.799426][ T781] WARNING: CPU: 0 PID: 781 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) 
| [   61.800098][  T781] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress vrf veth
[   61.801773][  T781] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 61.802194][ T781] 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) 
[ 61.802673][ T781] 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
[   61.803852][  T781] RSP: 0018:ffffc900004f6ef0 EFLAGS: 00010246
[   61.804261][  T781] RAX: 0000000000000000 RBX: ffff8880092c2000 RCX: 0000000000000001
[   61.804765][  T781] RDX: 0000000000000000 RSI: ffffffff9429b941 RDI: ffffffff93a555e0
[   61.805250][  T781] RBP: ffffc900004f6fe0 R08: 0000000000000000 R09: 0000000000000000
[   61.805753][  T781] R10: ffffc900004f7010 R11: ffffffff950a8918 R12: 1ffff9200009ede2
[   61.806251][  T781] R13: 00000000000005dc R14: ffffc900004f7010 R15: ffff8880092c2f08
[   61.806743][  T781] FS:  00007fc2c6c49800(0000) GS:ffff88809feb7000(0000) knlGS:0000000000000000
[   61.807322][  T781] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.807761][  T781] CR2: 00000000004e5aa8 CR3: 00000000127d6003 CR4: 0000000000772ef0
[   61.808252][  T781] PKRU: 55555554
[   61.808764][  T781] Call Trace:
[   61.809018][  T781]  <TASK>
[ 61.809209][ T781] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 61.809556][ T781] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.809892][ T781] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 61.810209][ T781] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 61.810620][ T781] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 61.810943][ T781] netif_set_mtu (net/core/dev.c:9652) 
[ 61.811278][ T781] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 61.811633][ T781] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 61.812084][ T781] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 61.812331][ T781] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 61.812793][ T781] br_add_if (net/bridge/br_if.c:697) bridge 
[ 61.813172][ T781] do_set_master (net/core/rtnetlink.c:2948) 
[ 61.813507][ T781] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 61.813847][ T781] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 61.814246][ T781] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 61.814569][ T781] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 61.814902][ T781] ? __kernel_text_address (kernel/extable.c:79) 
[ 61.815224][ T781] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.815560][ T781] ? __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) 
[ 61.815884][ T781] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 61.816282][ T781] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.816628][ T781] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.816944][ T781] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 61.817326][ T781] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 61.817652][ T781] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.817965][ T781] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 61.818274][ T781] ? __create_object (mm/kmemleak.c:771) 
[ 61.818632][ T781] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 61.818956][ T781] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 61.819286][ T781] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 61.819709][ T781] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 61.820041][ T781] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 61.820368][ T781] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.820705][ T781] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.821029][ T781] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.821349][ T781] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 61.821669][ T781] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 61.821983][ T781] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 61.822293][ T781] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 61.822622][ T781] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.822939][ T781] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.823258][ T781] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 61.823582][ T781] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 61.823898][ T781] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 61.824231][ T781] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 61.824557][ T781] ? 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) 
[ 61.824882][ T781] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 61.825195][ T781] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 61.825512][ T781] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.825828][ T781] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 61.826142][ T781] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 61.826453][ T781] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 61.826788][ T781] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 61.827127][ T781] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 61.827440][ T781] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 61.827846][ T781] ___sys_sendmsg (net/socket.c:2670) 
[ 61.828153][ T781] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 61.828487][ T781] ? __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) 
[ 61.828876][ T781] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 61.829189][ T781] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.829523][ T781] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 61.829852][ T781] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 61.830167][ T781] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 61.830496][ T781] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 61.830818][ T781] __sys_sendmsg (net/socket.c:2700) 
[ 61.831127][ T781] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 61.831551][ T781] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 61.831901][ T781] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 61.832239][ T781] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 61.832574][ T781] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   61.832985][  T781] RIP: 0033:0x7fc2c6e161e7
[ 61.833332][ T781] 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)
[   61.834506][  T781] RSP: 002b:00007ffc39137ef8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   61.834982][  T781] RAX: ffffffffffffffda RBX: 00007ffc39138620 RCX: 00007fc2c6e161e7
[   61.835984][  T781] RDX: 0000000000000000 RSI: 00007ffc39137f60 RDI: 0000000000000005
[   61.836497][  T781] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   61.836995][  T781] R10: 000000003605f910 R11: 0000000000000246 R12: 0000000000000004
[   61.837486][  T781] R13: 00000000686e3f43 R14: 0000000000499600 R15: 0000000000000000
| [   62.104172][  T784] ------------[ cut here ]------------
| [ 62.104505][ T784] WARNING: CPU: 3 PID: 784 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) 
| [   62.105127][  T784] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress vrf veth
| [   62.106348][  T784] Tainted: [W]=WARN
[   62.106635][  T784] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 62.107016][ T784] 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) 
[ 62.107348][ T784] 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
[   62.108450][  T784] RSP: 0018:ffffc90000516ef0 EFLAGS: 00010246
[   62.108867][  T784] RAX: 0000000000000000 RBX: ffff8880092c2000 RCX: 0000000000000001
[   62.109329][  T784] RDX: 0000000000000000 RSI: ffffffff9429b941 RDI: ffffffff93a555e0
[   62.109855][  T784] RBP: ffffc90000516fe0 R08: 0000000000000000 R09: 0000000000000000
[   62.110315][  T784] R10: ffffc90000517010 R11: ffffffff950a8918 R12: 1ffff920000a2de2
[   62.110795][  T784] R13: 00000000000005dc R14: ffffc90000517010 R15: ffff8880092c2f08
[   62.111258][  T784] FS:  00007fbb1e0cf800(0000) GS:ffff8880a0037000(0000) knlGS:0000000000000000
[   62.111820][  T784] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   62.112208][  T784] CR2: 00000000004e5ab0 CR3: 00000000094ab002 CR4: 0000000000772ef0
[   62.112693][  T784] PKRU: 55555554
[   62.112923][  T784] Call Trace:
[   62.113152][  T784]  <TASK>
[ 62.113310][ T784] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 62.113651][ T784] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 62.113969][ T784] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 62.114271][ T784] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 62.114670][ T784] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 62.114978][ T784] netif_set_mtu (net/core/dev.c:9652) 
[ 62.115285][ T784] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 62.115616][ T784] ? br_get_link_af_size_filtered (net/bridge/br_netlink.c:116) bridge 
[ 62.116051][ T784] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 62.116283][ T784] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 62.116725][ T784] br_add_if (net/bridge/br_if.c:697) bridge 
[ 62.117092][ T784] do_set_master (net/core/rtnetlink.c:2948) 
[ 62.117405][ T784] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 62.117742][ T784] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 62.118133][ T784] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 62.118435][ T784] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 62.118757][ T784] ? __kernel_text_address (kernel/extable.c:79) 
[ 62.119067][ T784] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 62.119373][ T784] ? __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) 
[ 62.119700][ T784] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 62.120078][ T784] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 62.120393][ T784] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 62.120720][ T784] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 62.121026][ T784] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 62.121332][ T784] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 62.121671][ T784] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 62.121977][ T784] ? __create_object (mm/kmemleak.c:771) 
[ 62.122283][ T784] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 62.122608][ T784] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 62.122915][ T784] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 62.123293][ T784] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 62.123628][ T784] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 62.123938][ T784] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 62.124238][ T784] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 62.124571][ T784] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 62.124884][ T784] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 62.125188][ T784] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 62.125520][ T784] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 62.125827][ T784] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 62.126134][ T784] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 62.126439][ T784] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 62.126771][ T784] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 62.127085][ T784] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 62.127400][ T784] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 62.127745][ T784] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 62.128048][ T784] ? 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) 
[ 62.128353][ T784] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 62.128680][ T784] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 62.128989][ T784] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 62.129296][ T784] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 62.129627][ T784] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 62.129943][ T784] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 62.130252][ T784] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 62.130580][ T784] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 62.130883][ T784] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 62.131271][ T784] ___sys_sendmsg (net/socket.c:2670) 
[ 62.131591][ T784] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 62.131893][ T784] ? __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) 
[ 62.132278][ T784] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 62.132605][ T784] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 62.132919][ T784] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 62.133227][ T784] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 62.133557][ T784] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 62.133863][ T784] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 62.134175][ T784] __sys_sendmsg (net/socket.c:2700) 
[ 62.134502][ T784] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 62.134881][ T784] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 62.135199][ T784] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 62.135520][ T784] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 62.135829][ T784] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   62.136204][  T784] RIP: 0033:0x7fbb1e29c1e7
[ 62.136542][ T784] 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)
[   62.137680][  T784] RSP: 002b:00007ffd327c0a68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   62.138138][  T784] RAX: ffffffffffffffda RBX: 00007ffd327c1190 RCX: 00007fbb1e29c1e7
[   62.138616][  T784] RDX: 0000000000000000 RSI: 00007ffd327c0ad0 RDI: 0000000000000005
[   62.139077][  T784] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   62.139553][  T784] R10: 000000002363b910 R11: 0000000000000246 R12: 0000000000000004
[   62.140007][  T784] R13: 00000000686e3f43 R14: 0000000000499600 R15: 0000000000000000
| [   92.454873][  T997] ------------[ cut here ]------------
| [ 92.455206][ T997] WARNING: CPU: 1 PID: 997 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) 
| [   92.455834][  T997] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress vrf veth
| [   92.457282][  T997] Tainted: [W]=WARN
[   92.457544][  T997] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.457929][ T997] 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) 
[ 92.458245][ T997] 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
[   92.459369][  T997] RSP: 0018:ffffc90000e6ef70 EFLAGS: 00010246
[   92.459784][  T997] RAX: 0000000000000000 RBX: ffff8880092c2000 RCX: 0000000000000001
[   92.460241][  T997] RDX: 0000000000000000 RSI: ffffffff9429b941 RDI: ffffffff93a555e0
[   92.460721][  T997] RBP: ffffc90000e6f058 R08: 0000000000000000 R09: 0000000000000000
[   92.461180][  T997] R10: ffffc90000e6f088 R11: ffffffff90600130 R12: 1ffff920001cddf2
[   92.461819][  T997] R13: 00000000000005dc R14: ffffc90000e6f088 R15: ffff8880092c2f08
[   92.462275][  T997] FS:  00007f26c9840800(0000) GS:ffff88809ff37000(0000) knlGS:0000000000000000
[   92.463088][  T997] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.463723][  T997] CR2: 00000000004e5ab0 CR3: 0000000009670003 CR4: 0000000000772ef0
[   92.464191][  T997] PKRU: 55555554
[   92.464422][  T997] Call Trace:
[   92.464806][  T997]  <TASK>
[ 92.464963][ T997] ? __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) 
[ 92.465345][ T997] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 92.465835][ T997] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 92.466143][ T997] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 92.466451][ T997] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 92.466788][ T997] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 92.467101][ T997] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 92.467410][ T997] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 92.467758][ T997] ? ___sys_sendmsg (net/socket.c:2670) 
[ 92.468072][ T997] ? __sys_sendmsg (net/socket.c:2700) 
[ 92.468379][ T997] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 92.468721][ T997] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 92.469116][ T997] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.469443][ T997] netif_set_mtu (net/core/dev.c:9652) 
[ 92.469776][ T997] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 92.470102][ T997] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 92.470345][ T997] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 92.470807][ T997] br_del_if (net/bridge/br_if.c:743) bridge 
[ 92.471161][ T997] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 92.471510][ T997] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 92.471837][ T997] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 92.472163][ T997] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 92.472594][ T997] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 92.472904][ T997] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 92.473215][ T997] ? __kernel_text_address (kernel/extable.c:79) 
[ 92.473557][ T997] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.473879][ T997] ? __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) 
[ 92.474190][ T997] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 92.474602][ T997] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.474924][ T997] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.475237][ T997] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 92.475590][ T997] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 92.475911][ T997] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.476225][ T997] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 92.476572][ T997] ? __create_object (mm/kmemleak.c:771) 
[ 92.476889][ T997] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 92.477216][ T997] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 92.477557][ T997] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 92.477947][ T997] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 92.478266][ T997] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 92.478605][ T997] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.478926][ T997] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.479244][ T997] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.479579][ T997] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 92.479881][ T997] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.480183][ T997] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.480517][ T997] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 92.480827][ T997] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.481133][ T997] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.481446][ T997] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 92.481784][ T997] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.482089][ T997] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 92.482414][ T997] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 92.482739][ T997] ? 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) 
[ 92.483048][ T997] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 92.483354][ T997] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 92.483684][ T997] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.484004][ T997] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 92.484320][ T997] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 92.484657][ T997] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 92.484980][ T997] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 92.485289][ T997] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 92.485620][ T997] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 92.486021][ T997] ___sys_sendmsg (net/socket.c:2670) 
[ 92.486323][ T997] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 92.486659][ T997] ? __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) 
[ 92.487056][ T997] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 92.487374][ T997] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.487719][ T997] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.488037][ T997] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.488359][ T997] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 92.488688][ T997] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.489005][ T997] __sys_sendmsg (net/socket.c:2700) 
[ 92.489316][ T997] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 92.489726][ T997] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 92.490042][ T997] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.490349][ T997] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 92.490684][ T997] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.491079][  T997] RIP: 0033:0x7f26c9a0d1e7
[ 92.491405][ T997] 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)
[   92.492549][  T997] RSP: 002b:00007ffef577c2f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   92.493027][  T997] RAX: ffffffffffffffda RBX: 00007ffef577ca20 RCX: 00007f26c9a0d1e7
[   92.493513][  T997] RDX: 0000000000000000 RSI: 00007ffef577c360 RDI: 0000000000000005
[   92.493990][  T997] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   92.494456][  T997] R10: 00007f26c990aee8 R11: 0000000000000246 R12: 0000000000000003
[   92.494946][  T997] R13: 00000000686e3f62 R14: 0000000000499600 R15: 0000000000000000
| [   92.766895][  T999] ------------[ cut here ]------------
| [ 92.767431][ T999] WARNING: CPU: 0 PID: 999 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) 
| [   92.769762][  T999] Modules linked in: bridge stp llc act_gact cls_flower sch_ingress vrf veth
| [   92.771858][  T999] Tainted: [W]=WARN
[   92.772282][  T999] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.773041][ T999] 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) 
[ 92.773647][ T999] 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
[   92.775659][  T999] RSP: 0018:ffffc90000e7ef70 EFLAGS: 00010246
[   92.776321][  T999] RAX: 0000000000000000 RBX: ffff8880092c2000 RCX: 0000000000000001
[   92.776818][  T999] RDX: 0000000000000000 RSI: ffffffff9429b941 RDI: ffffffff93a555e0
[   92.777327][  T999] RBP: ffffc90000e7f058 R08: 0000000000000000 R09: 0000000000000000
[   92.777809][  T999] R10: ffffc90000e7f088 R11: ffffffff94779160 R12: 1ffff920001cfdf2
[   92.778292][  T999] R13: 00000000000005dc R14: ffffc90000e7f088 R15: ffff8880092c2f08
[   92.778840][  T999] FS:  00007fe1552f7800(0000) GS:ffff88809feb7000(0000) knlGS:0000000000000000
[   92.779668][  T999] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.780258][  T999] CR2: 00000000004e5aa8 CR3: 0000000009670002 CR4: 0000000000772ef0
[   92.780815][  T999] PKRU: 55555554
[   92.781084][  T999] Call Trace:
[   92.781393][  T999]  <TASK>
[ 92.781596][ T999] ? __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) 
[ 92.782075][ T999] ? br_del_if (net/bridge/br_if.c:742) bridge 
[ 92.782532][ T999] ? do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 92.782987][ T999] ? do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 92.783532][ T999] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 92.784069][ T999] ? netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 92.784639][ T999] ? netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 92.785171][ T999] ? ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 92.785724][ T999] ? ___sys_sendmsg (net/socket.c:2670) 
[ 92.786250][ T999] ? __sys_sendmsg (net/socket.c:2700) 
[ 92.786792][ T999] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 92.787259][ T999] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 92.787723][ T999] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.788130][ T999] netif_set_mtu (net/core/dev.c:9652) 
[ 92.788547][ T999] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 92.788925][ T999] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 92.789243][ T999] br_mtu_auto_adjust (net/bridge/br_if.c:525) bridge 
[ 92.789899][ T999] br_del_if (net/bridge/br_if.c:743) bridge 
[ 92.790516][ T999] ? rtnl_is_locked (net/core/rtnetlink.c:169) 
[ 92.791060][ T999] do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2933) 
[ 92.791591][ T999] do_setlink.constprop.0 (net/core/rtnetlink.c:3150) 
[ 92.791906][ T999] ? __pfx_do_setlink.constprop.0 (net/core/rtnetlink.c:3021) 
[ 92.792334][ T999] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 92.792658][ T999] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 92.792965][ T999] ? __kernel_text_address (kernel/extable.c:79) 
[ 92.793291][ T999] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.793619][ T999] ? __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) 
[ 92.794022][ T999] ? __pfx___mutex_trylock_common (kernel/locking/mutex.c:88) 
[ 92.794433][ T999] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.794764][ T999] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.795071][ T999] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21)) 
[ 92.795595][ T999] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:728 kernel/locking/mutex.c:747) 
[ 92.795944][ T999] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.796260][ T999] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 92.796580][ T999] ? __create_object (mm/kmemleak.c:771) 
[ 92.797002][ T999] ? __pfx___mutex_lock (kernel/locking/mutex.c:746) 
[ 92.797349][ T999] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 92.797683][ T999] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 92.798071][ T999] ? __rtnl_newlink (net/core/rtnetlink.c:3907) 
[ 92.798397][ T999] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 92.798742][ T999] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.799047][ T999] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.799385][ T999] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.799722][ T999] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 92.800030][ T999] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.800424][ T999] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 92.800746][ T999] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 92.801053][ T999] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.801388][ T999] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.801714][ T999] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 92.802030][ T999] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 92.802353][ T999] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 92.802696][ T999] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 92.803003][ T999] ? 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) 
[ 92.803337][ T999] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 92.803676][ T999] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 92.803982][ T999] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.804408][ T999] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 92.804750][ T999] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 92.805054][ T999] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 92.805366][ T999] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 92.805762][ T999] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 92.806070][ T999] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 92.806585][ T999] ___sys_sendmsg (net/socket.c:2670) 
[ 92.806903][ T999] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 92.807245][ T999] ? __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) 
[ 92.807806][ T999] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 92.808180][ T999] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.808581][ T999] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 92.808933][ T999] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 92.809348][ T999] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 92.809682][ T999] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 92.810075][ T999] __sys_sendmsg (net/socket.c:2700) 
[ 92.810444][ T999] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 92.810883][ T999] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 92.811285][ T999] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 92.811724][ T999] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 92.812072][ T999] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.812561][  T999] RIP: 0033:0x7fe1554c41e7
[ 92.812984][ T999] 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)
[   92.814317][  T999] RSP: 002b:00007ffd72005638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   92.814796][  T999] RAX: ffffffffffffffda RBX: 00007ffd72005d60 RCX: 00007fe1554c41e7
[   92.815381][  T999] RDX: 0000000000000000 RSI: 00007ffd720056a0 RDI: 0000000000000005
[   92.815955][  T999] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   92.816528][  T999] R10: 00007fe1553c1ee8 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