======================================
| [   26.636594][    C1] rcu_scheduler_active = 2, debug_locks = 1
| [   26.636940][    C1] no locks held by ksoftirqd/1/22.
| [   26.637172][    C1]
| [   26.637172][    C1] stack backtrace:
[   26.637467][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.637469][    C1] Call Trace:
[   26.637471][    C1]  <TASK>
[ 26.637473][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 26.637483][ C1] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 26.637493][ C1] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 26.637499][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/ip_input.c:234) 
[ 26.637508][ C1] ? ip_local_deliver_finish (net/ipv4/ip_input.c:237) 
[ 26.637514][ C1] ? ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 26.637519][ C1] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 26.637527][ C1] ? ip_rcv_finish_core (./include/linux/skbuff.h:1160 ./include/net/route.h:88 net/ipv4/ip_input.c:390) 
[ 26.637542][ C1] veth_poll (drivers/net/veth.c:977) 
[ 26.637546][ C1] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 26.637558][ C1] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 26.637563][ C1] ? process_backlog (net/core/dev.c:6443) 
[ 26.637567][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 26.637572][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.637577][ 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) 
[ 26.637585][ C1] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 26.637588][ C1] ? process_backlog (net/core/dev.c:6443) 
[ 26.637594][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.637600][ C1] __napi_poll.constprop.0 (net/core/dev.c:7383) 
[ 26.637603][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.637609][ C1] net_rx_action (net/core/dev.c:7447 net/core/dev.c:7569) 
[ 26.637619][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 26.637625][ C1] ? __pfx_net_rx_action (net/core/dev.c:7531) 
[ 26.637629][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.637632][ C1] ? trace_sched_exit_tp (./include/trace/events/sched.h:829 (discriminator 21)) 
[ 26.637639][ C1] ? __schedule (kernel/sched/core.c:6646) 
[ 26.637648][ C1] ? __pfx___schedule (kernel/sched/core.c:6646) 
[ 26.637661][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 26.637669][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 26.637675][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 26.637678][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 26.637683][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 26.637688][ C1] kthread (kernel/kthread.c:464) 
[ 26.637693][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 26.637695][ C1] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 26.637700][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 26.637705][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.637709][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 26.637714][ C1] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 26.637717][ C1] ? __pfx_kthread (kernel/kthread.c:413) 


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