======================================
| [  148.251589][    C1] rcu_scheduler_active = 2, debug_locks = 1
| [  148.251928][    C1] no locks held by ksoftirqd/1/22.
| [  148.252240][    C1]
| [  148.252240][    C1] stack backtrace:
[  148.252538][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  148.252540][    C1] Call Trace:
[  148.252543][    C1]  <TASK>
[ 148.252545][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 148.252561][ C1] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 148.252573][ C1] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 148.252582][ C1] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 148.252589][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 148.252599][ C1] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 148.252604][ C1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 148.252615][ C1] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 148.252621][ C1] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 148.252630][ C1] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 148.252640][ C1] veth_poll (drivers/net/veth.c:977) 
[ 148.252644][ C1] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 148.252647][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 148.252659][ C1] ? dl_scaled_delta_exec (kernel/sched/deadline.c:1481) 
[ 148.252670][ C1] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 148.252672][ C1] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 148.252681][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 148.252692][ C1] __napi_poll.constprop.0 (net/core/dev.c:7383) 
[ 148.252697][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 148.252706][ C1] net_rx_action (net/core/dev.c:7447 net/core/dev.c:7569) 
[ 148.252717][ C1] ? __pfx_net_rx_action (net/core/dev.c:7531) 
[ 148.252723][ C1] ? _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) 
[ 148.252732][ C1] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 148.252750][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 148.252760][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 148.252766][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 148.252770][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 148.252775][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 148.252780][ C1] kthread (kernel/kthread.c:464) 
[ 148.252785][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 148.252787][ C1] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 148.252791][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 148.252796][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 148.252799][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 148.252804][ C1] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 148.252807][ C1] ? __pfx_kthread (kernel/kthread.c:413) 


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