======================================
| [   23.257999][    C2] rcu_scheduler_active = 2, debug_locks = 1
| [   23.258371][    C2] no locks held by ksoftirqd/2/27.
| [   23.258645][    C2]
| [   23.258645][    C2] stack backtrace:
[   23.258963][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.258965][    C2] Call Trace:
[   23.258967][    C2]  <TASK>
[ 23.258969][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 23.258980][ C2] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 23.258990][ C2] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 23.258997][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 23.259004][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 23.259013][ C2] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 23.259017][ C2] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 23.259027][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 23.259032][ C2] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 23.259038][ C2] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 23.259048][ C2] veth_poll (drivers/net/veth.c:977) 
[ 23.259052][ C2] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 23.259055][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 23.259065][ C2] ? dl_scaled_delta_exec (kernel/sched/deadline.c:1481) 
[ 23.259076][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 23.259079][ C2] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 23.259087][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 23.259097][ C2] __napi_poll.constprop.0 (net/core/dev.c:7383) 
[ 23.259102][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 23.259109][ C2] net_rx_action (net/core/dev.c:7447 net/core/dev.c:7569) 
[ 23.259121][ C2] ? __pfx_net_rx_action (net/core/dev.c:7531) 
[ 23.259125][ C2] ? _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) 
[ 23.259132][ C2] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 23.259151][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 23.259160][ C2] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 23.259165][ C2] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 23.259169][ C2] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 23.259174][ C2] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 23.259179][ C2] kthread (kernel/kthread.c:464) 
[ 23.259184][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 23.259186][ C2] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 23.259190][ C2] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 23.259195][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 23.259199][ C2] ? __pfx_kthread (kernel/kthread.c:413) 
[ 23.259204][ C2] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 23.259207][ C2] ? __pfx_kthread (kernel/kthread.c:413) 


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