======================================
| [   27.569313][    C1] rcu_scheduler_active = 2, debug_locks = 1
| [   27.569655][    C1] no locks held by ksoftirqd/1/22.
| [   27.569890][    C1]
| [   27.569890][    C1] stack backtrace:
[   27.570187][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.570189][    C1] Call Trace:
[   27.570191][    C1]  <TASK>
[ 27.570193][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 27.570203][ C1] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 27.570213][ C1] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 27.570219][ C1] ? ip_local_deliver_finish (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/ipv4/ip_input.c:234) 
[ 27.570227][ C1] ? ip_local_deliver_finish (net/ipv4/ip_input.c:237) 
[ 27.570233][ C1] ? ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 27.570238][ C1] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 27.570247][ C1] ? ip_rcv_finish_core (./include/linux/skbuff.h:1160 ./include/net/route.h:88 net/ipv4/ip_input.c:390) 
[ 27.570261][ C1] veth_poll (drivers/net/veth.c:977) 
[ 27.570266][ C1] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 27.570278][ C1] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 27.570282][ C1] ? process_backlog (net/core/dev.c:6473) 
[ 27.570286][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 27.570292][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.570296][ 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) 
[ 27.570304][ C1] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 27.570307][ C1] ? process_backlog (net/core/dev.c:6473) 
[ 27.570313][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.570319][ C1] __napi_poll.constprop.0 (net/core/dev.c:7413) 
[ 27.570322][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.570328][ C1] net_rx_action (net/core/dev.c:7477 net/core/dev.c:7599) 
[ 27.570338][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 27.570342][ C1] ? __pfx_net_rx_action (net/core/dev.c:7561) 
[ 27.570345][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.570349][ C1] ? trace_sched_exit_tp (./include/trace/events/sched.h:829 (discriminator 21)) 
[ 27.570356][ C1] ? __schedule (kernel/sched/core.c:6646) 
[ 27.570366][ C1] ? __pfx___schedule (kernel/sched/core.c:6646) 
[ 27.570378][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 27.570387][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 27.570393][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 27.570396][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 27.570401][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 27.570406][ C1] kthread (kernel/kthread.c:464) 
[ 27.570411][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 27.570414][ C1] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 27.570417][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 27.570422][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 27.570426][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 27.570431][ C1] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 27.570434][ C1] ? __pfx_kthread (kernel/kthread.c:413) 


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