======================================
| [  155.352765][    C0] rcu_scheduler_active = 2, debug_locks = 1
| [  155.353103][    C0] no locks held by ksoftirqd/0/14.
| [  155.353350][    C0]
| [  155.353350][    C0] stack backtrace:
[  155.353654][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  155.353656][    C0] Call Trace:
[  155.353658][    C0]  <TASK>
[ 155.353660][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 155.353670][ C0] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 155.353680][ C0] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 155.353686][ C0] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 155.353690][ C0] ? kernel_text_address (kernel/extable.c:99) 
[ 155.353695][ C0] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 155.353702][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 155.353709][ C0] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 155.353714][ C0] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 155.353723][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:387 kernel/rcu/update.c:380) 
[ 155.353728][ C0] ? stack_depot_save_flags (lib/stackdepot.c:552 lib/stackdepot.c:619) 
[ 155.353735][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 155.353738][ C0] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 155.353749][ C0] veth_poll (drivers/net/veth.c:977) 
[ 155.353753][ C0] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 155.353756][ C0] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 155.353766][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 155.353770][ C0] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) 
[ 155.353775][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 155.353781][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 155.353787][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 155.353791][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 155.353795][ C0] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) 
[ 155.353808][ C0] __napi_poll.constprop.0 (net/core/dev.c:7413) 
[ 155.353812][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 155.353819][ C0] net_rx_action (net/core/dev.c:7477 net/core/dev.c:7599) 
[ 155.353829][ C0] ? rcu_do_batch (kernel/rcu/tree_nocb.h:1642 kernel/rcu/tree.c:2634) 
[ 155.353834][ C0] ? __pfx_net_rx_action (net/core/dev.c:7561) 
[ 155.353849][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 155.353860][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 155.353868][ C0] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 155.353874][ C0] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 155.353877][ C0] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 155.353882][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 155.353887][ C0] kthread (kernel/kthread.c:464) 
[ 155.353892][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 155.353894][ C0] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 155.353898][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 155.353903][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 155.353907][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 155.353912][ C0] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 155.353914][ C0] ? __pfx_kthread (kernel/kthread.c:413) 


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