======================================
| [ 5061.335024][    C3] rcu_scheduler_active = 2, debug_locks = 1
| [ 5061.335373][    C3] no locks held by ksoftirqd/3/32.
| [ 5061.335615][    C3]
| [ 5061.335615][    C3] stack backtrace:
[ 5061.335911][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5061.335913][    C3] Call Trace:
[ 5061.335915][    C3]  <TASK>
[ 5061.335918][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 5061.335929][ C3] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 5061.335939][ C3] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 5061.335947][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 5061.335954][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 5061.335964][ C3] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 5061.335968][ C3] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 5061.335978][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 5061.335984][ C3] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 5061.335990][ C3] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 5061.336000][ C3] veth_poll (drivers/net/veth.c:977) 
[ 5061.336005][ C3] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 5061.336008][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 5061.336019][ C3] ? dl_scaled_delta_exec (kernel/sched/deadline.c:1481) 
[ 5061.336034][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 5061.336037][ C3] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 5061.336048][ C3] __napi_poll.constprop.0 (net/core/dev.c:7383) 
[ 5061.336053][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 5061.336060][ C3] net_rx_action (net/core/dev.c:7447 net/core/dev.c:7569) 
[ 5061.336070][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 5061.336076][ C3] ? __pfx_net_rx_action (net/core/dev.c:7531) 
[ 5061.336080][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 5061.336084][ C3] ? trace_sched_exit_tp (./include/trace/events/sched.h:829 (discriminator 21)) 
[ 5061.336090][ C3] ? __schedule (kernel/sched/core.c:6646) 
[ 5061.336100][ C3] ? __pfx___schedule (kernel/sched/core.c:6646) 
[ 5061.336113][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 5061.336122][ C3] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 5061.336128][ C3] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 5061.336131][ C3] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 5061.336136][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 5061.336141][ C3] kthread (kernel/kthread.c:464) 
[ 5061.336147][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 5061.336150][ C3] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 5061.336155][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 5061.336160][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 5061.336164][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 5061.336169][ C3] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 5061.336171][ C3] ? __pfx_kthread (kernel/kthread.c:413) 


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