======================================
| [  731.319812][    C0] rcu_scheduler_active = 2, debug_locks = 1
| [  731.320166][    C0] no locks held by ksoftirqd/0/14.
| [  731.320401][    C0]
| [  731.320401][    C0] stack backtrace:
[  731.320686][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  731.320688][    C0] Call Trace:
[  731.320690][    C0]  <TASK>
[ 731.320692][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 731.320704][ C0] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 731.320714][ C0] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 731.320720][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 731.320729][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 731.320735][ C0] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 731.320740][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 731.320745][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 731.320754][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 731.320763][ C0] veth_poll (drivers/net/veth.c:977) 
[ 731.320768][ C0] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 731.320776][ C0] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 731.320780][ C0] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 731.320787][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 731.320792][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 731.320795][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 731.320803][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 731.320813][ C0] __napi_poll.constprop.0 (net/core/dev.c:7413) 
[ 731.320818][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 731.320825][ C0] net_rx_action (net/core/dev.c:7477 net/core/dev.c:7599) 
[ 731.320837][ C0] ? __pfx_net_rx_action (net/core/dev.c:7561) 
[ 731.320842][ C0] ? _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) 
[ 731.320847][ C0] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 731.320865][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 731.320874][ C0] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 731.320879][ C0] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 731.320883][ C0] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 731.320887][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 731.320892][ C0] kthread (kernel/kthread.c:464) 
[ 731.320897][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 731.320899][ C0] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 731.320903][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 731.320908][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 731.320913][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 731.320918][ C0] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 731.320921][ C0] ? __pfx_kthread (kernel/kthread.c:413) 


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