======================================
| [   26.985724][    C1] rcu_scheduler_active = 2, debug_locks = 1
| [   26.986084][    C1] no locks held by ksoftirqd/1/22.
| [   26.986328][    C1]
| [   26.986328][    C1] stack backtrace:
[   26.986675][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.986677][    C1] Call Trace:
[   26.986679][    C1]  <TASK>
[ 26.986682][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 26.986692][ C1] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 26.986701][ C1] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 26.986707][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/ip_input.c:234) 
[ 26.986714][ C1] ? ip_local_deliver_finish (net/ipv4/ip_input.c:237) 
[ 26.986720][ C1] ? ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 26.986726][ C1] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 26.986734][ C1] ? ip_rcv_finish_core (./include/linux/skbuff.h:1160 ./include/net/route.h:88 net/ipv4/ip_input.c:390) 
[ 26.986748][ C1] veth_poll (drivers/net/veth.c:977) 
[ 26.986753][ C1] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 26.986764][ C1] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 26.986769][ C1] ? process_backlog (net/core/dev.c:6443) 
[ 26.986773][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 26.986779][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.986784][ 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) 
[ 26.986791][ C1] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 26.986794][ C1] ? process_backlog (net/core/dev.c:6443) 
[ 26.986799][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.986806][ C1] __napi_poll.constprop.0 (net/core/dev.c:7383) 
[ 26.986809][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.986815][ C1] net_rx_action (net/core/dev.c:7447 net/core/dev.c:7569) 
[ 26.986827][ C1] ? __pfx_net_rx_action (net/core/dev.c:7531) 
[ 26.986832][ 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) 
[ 26.986837][ C1] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 26.986847][ C1] ? run_timer_softirq (kernel/time/timer.c:2446) 
[ 26.986851][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 26.986856][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.986864][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 26.986873][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 26.986878][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 26.986881][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 26.986886][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 26.986891][ C1] kthread (kernel/kthread.c:464) 
[ 26.986896][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 26.986899][ C1] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 26.986902][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 26.986907][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.986911][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 26.986916][ C1] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 26.986919][ C1] ? __pfx_kthread (kernel/kthread.c:413) 


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