======================================
| [ 5215.154874][    C3] rcu_scheduler_active = 2, debug_locks = 1
| [ 5215.155231][    C3] no locks held by ksoftirqd/3/32.
| [ 5215.155479][    C3]
| [ 5215.155479][    C3] stack backtrace:
[ 5215.155786][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5215.155789][    C3] Call Trace:
[ 5215.155792][    C3]  <TASK>
[ 5215.155794][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 5215.155807][ C3] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 5215.155819][ C3] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 5215.155827][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 5215.155835][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 5215.155845][ C3] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 5215.155850][ C3] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 5215.155861][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 5215.155867][ C3] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 5215.155875][ C3] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 5215.155884][ C3] veth_poll (drivers/net/veth.c:977) 
[ 5215.155889][ C3] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 5215.155892][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 5215.155903][ C3] ? dl_scaled_delta_exec (kernel/sched/deadline.c:1481) 
[ 5215.155919][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 5215.155922][ C3] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 5215.155934][ C3] __napi_poll.constprop.0 (net/core/dev.c:7413) 
[ 5215.155939][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 5215.155947][ C3] net_rx_action (net/core/dev.c:7477 net/core/dev.c:7599) 
[ 5215.155957][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 5215.155961][ C3] ? __pfx_net_rx_action (net/core/dev.c:7561) 
[ 5215.155965][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 5215.155969][ C3] ? trace_sched_exit_tp (./include/trace/events/sched.h:829 (discriminator 21)) 
[ 5215.155976][ C3] ? __schedule (kernel/sched/core.c:6646) 
[ 5215.155988][ C3] ? __pfx___schedule (kernel/sched/core.c:6646) 
[ 5215.156000][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 5215.156010][ C3] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 5215.156016][ C3] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 5215.156019][ C3] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 5215.156024][ C3] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 5215.156030][ C3] kthread (kernel/kthread.c:464) 
[ 5215.156034][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 5215.156037][ C3] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 5215.156041][ C3] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 5215.156046][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 5215.156050][ C3] ? __pfx_kthread (kernel/kthread.c:413) 
[ 5215.156055][ C3] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 5215.156058][ C3] ? __pfx_kthread (kernel/kthread.c:413) 


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