======================================
| [   27.650397][    C3] rcu_scheduler_active = 2, debug_locks = 1
| [   27.650735][    C3] no locks held by ksoftirqd/3/32.
| [   27.650966][    C3]
| [   27.650966][    C3] stack backtrace:
[   27.651257][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.651259][    C3] Call Trace:
[   27.651261][    C3]  <TASK>
[ 27.651264][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 27.651274][ C3] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 27.651284][ C3] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 27.651291][ C3] ? ip_local_deliver_finish (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/ip_input.c:234) 
[ 27.651299][ C3] ? ip_local_deliver_finish (net/ipv4/ip_input.c:237) 
[ 27.651305][ C3] ? ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 27.651311][ C3] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 27.651319][ C3] ? ip_rcv_finish_core (./include/linux/skbuff.h:1160 ./include/net/route.h:88 net/ipv4/ip_input.c:390) 
[ 27.651333][ C3] veth_poll (drivers/net/veth.c:977) 
[ 27.651338][ C3] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 27.651350][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 27.651354][ C3] ? process_backlog (net/core/dev.c:6443) 
[ 27.651358][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 27.651364][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.651369][ C3] ? _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) 
[ 27.651376][ C3] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 27.651380][ C3] ? process_backlog (net/core/dev.c:6443) 
[ 27.651385][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.651392][ C3] __napi_poll.constprop.0 (net/core/dev.c:7383) 
[ 27.651395][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.651401][ C3] net_rx_action (net/core/dev.c:7447 net/core/dev.c:7569) 
[ 27.651412][ C3] ? __pfx_net_rx_action (net/core/dev.c:7531) 
[ 27.651427][ C3] ? run_timer_softirq (kernel/time/timer.c:2446) 
[ 27.651431][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 27.651436][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.651444][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 27.651453][ C3] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 27.651459][ C3] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 27.651462][ C3] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 27.651467][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 27.651472][ C3] kthread (kernel/kthread.c:464) 
[ 27.651477][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 27.651479][ C3] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 27.651482][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 27.651487][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.651491][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 27.651496][ C3] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 27.651499][ C3] ? __pfx_kthread (kernel/kthread.c:413) 


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