======================================
| [  942.785340][    C0] rcu_scheduler_active = 2, debug_locks = 1
| [  942.785838][    C0] no locks held by swapper/0/0.
| [  942.786162][    C0]
| [  942.786162][    C0] stack backtrace:
[  942.786569][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  942.786572][    C0] Call Trace:
[  942.786585][    C0]  <IRQ>
[ 942.786587][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 942.786602][ C0] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 942.786613][ C0] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 942.786621][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 942.786629][ C0] ? debug_object_activate (lib/debugobjects.c:837) 
[ 942.786639][ C0] ? __pfx_debug_object_activate (lib/debugobjects.c:805) 
[ 942.786644][ C0] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 942.786650][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 942.786656][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 942.786660][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 942.786664][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 942.786669][ C0] ? __mod_timer (kernel/time/timer.c:1061) 
[ 942.786682][ C0] veth_poll (drivers/net/veth.c:977) 
[ 942.786686][ C0] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 942.786698][ C0] ? addrconf_rs_timer (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/addrconf.h:416 net/ipv6/addrconf.c:4063) 
[ 942.786707][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 942.786711][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 942.786714][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 942.786721][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 942.786732][ C0] __napi_poll.constprop.0 (net/core/dev.c:7383) 
[ 942.786736][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 942.786743][ C0] net_rx_action (net/core/dev.c:7447 net/core/dev.c:7569) 
[ 942.786754][ C0] ? __pfx_net_rx_action (net/core/dev.c:7531) 
[ 942.786759][ C0] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 942.786764][ C0] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 942.786774][ C0] ? run_timer_softirq (kernel/time/timer.c:2446) 
[ 942.786777][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 942.786787][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 942.786801][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 942.786804][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 942.786807][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[  942.786814][    C0]  </IRQ>
[  942.786815][    C0]  <TASK>
[ 942.786817][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 942.786823][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 942.786827][ C0] Code: df d3 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d e3 70 26 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	df d3                	(bad)
   2:	00 c3                	add    %al,%bl
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d e3 70 26 00 	verw   0x2670e3(%rip)        # 0x26710b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  942.786830][    C0] RSP: 0018:ffffffffa7207df8 EFLAGS: 00000246
[  942.786833][    C0] RAX: 00000000014bd171 RBX: 1ffffffff4e40fc3 RCX: ffffffffa5e2ba59
[  942.786835][    C0] RDX: 0000000000000000 RSI: ffffffffa6b0b7a2 RDI: ffffffffa62539c0
[  942.786838][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9c667a
[  942.786839][    C0] R10: ffff88806ce333d3 R11: 0000000000000000 R12: 0000000000000000
[  942.786841][    C0] R13: ffffffffa7233240 R14: dffffc0000000000 R15: 0000000000014770
[ 942.786848][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 942.786857][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 942.786860][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 942.786863][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 942.786870][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 942.786876][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 942.786885][ C0] do_idle (kernel/sched/idle.c:325) 
[ 942.786891][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 942.786895][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 942.786900][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 942.786908][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 942.786912][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 


Finger prints:
lockdep_rcu_suspicious:veth_xdp_rcv:veth_poll:net_rx_action:handle_softirqs