======================================
| [ 1286.251927][ C0] #0: ffffffffbbf9d4e0 (rcu_read_lock){....}-{1:3}, at: process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6438) 
| [ 1286.252302][ C0] #1: ffffffffbbf9d4e0 (rcu_read_lock){....}-{1:3}, at: ip_local_deliver_finish (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 net/ipv4/ip_input.c:232) 
| [ 1286.252746][    C0]
| [ 1286.252746][    C0] stack backtrace:
[ 1286.253008][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1286.253011][    C0] Call Trace:
[ 1286.253013][    C0]  <TASK>
[ 1286.253016][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1286.253025][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 1286.253030][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 1286.253035][ C0] ? save_trace (kernel/locking/lockdep.c:595) 
[ 1286.253040][ C0] mark_lock (kernel/locking/lockdep.c:4756) 
[ 1286.253044][ C0] mark_usage (kernel/locking/lockdep.c:4645) 
[ 1286.253048][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 1286.253051][ C0] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 1286.253056][ C0] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1286.253062][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 1286.253065][ C0] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 1286.253069][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.253075][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1286.253078][ C0] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 1286.253082][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 1286.253086][ C0] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 1286.253089][ C0] xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 1286.253092][ C0] ? __pfx_xa_set_mark (lib/xarray.c:2144) 
[ 1286.253095][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 1286.253101][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 1286.253104][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:54 lib/ref_tracker.c:223) 
[ 1286.253108][ C0] ? trace_kfree (./include/trace/events/kmem.h:94 (discriminator 21)) 
[ 1286.253114][ C0] ? kfree (mm/slub.c:4831) 
[ 1286.253118][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1286.253121][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:213) 
[ 1286.253125][ C0] ? ref_tracker_free (lib/ref_tracker.c:281) 
[ 1286.253128][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 1286.253132][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:281) 
[ 1286.253135][ C0] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2368) 
[ 1286.253139][ C0] ? tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1286.253144][ C0] ? icmp_unreach (net/ipv4/icmp.c:969) 
[ 1286.253148][ C0] ? icmp_rcv (net/ipv4/icmp.c:1294) 
[ 1286.253152][ C0] __put_net (./include/linux/llist.h:238 ./include/linux/llist.h:265 net/core/net_namespace.c:732) 
[ 1286.253157][ C0] ? handle_softirqs (kernel/softirq.c:580) 
[ 1286.253161][ C0] ? __pfx___put_net (net/core/net_namespace.c:729) 
[ 1286.253165][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1286.253173][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2368) 
[ 1286.253177][ C0] tcp_v4_err (./include/net/sock.h:1960 net/ipv4/tcp_ipv4.c:658) 
[ 1286.253183][ C0] icmp_unreach (net/ipv4/icmp.c:969) 
[ 1286.253185][ C0] ? __skb_checksum_complete (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/refcount.h:170 ./include/linux/skbuff.h:2065 net/core/skbuff.c:3737) 
[ 1286.253189][ C0] icmp_rcv (net/ipv4/icmp.c:1294) 
[ 1286.253194][ C0] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 1286.253198][ C0] ip_local_deliver_finish (./include/linux/rcupdate.h:869 net/ipv4/ip_input.c:234) 
[ 1286.253203][ C0] ip_local_deliver (./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:254) 
[ 1286.253206][ C0] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 1286.253211][ C0] ? ip_rcv_finish_core (./include/net/net_namespace.h:409 (discriminator 3) ./include/linux/netdevice.h:2713 (discriminator 3) net/ipv4/ip_input.c:372 (discriminator 3)) 
[ 1286.253217][ C0] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6438) 
[ 1286.253220][ C0] ip_rcv (./include/net/dst.h:469 net/ipv4/ip_input.c:447 ./include/linux/netfilter.h:317 ./include/linux/netfilter.h:311 net/ipv4/ip_input.c:567) 
[ 1286.253223][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1286.253227][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 1286.253233][ C0] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 1286.253238][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 1286.253242][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:560) 
[ 1286.253244][ C0] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6438) 
[ 1286.253247][ C0] __netif_receive_skb_one_core (net/core/dev.c:5975 (discriminator 4)) 
[ 1286.253251][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5968) 
[ 1286.253255][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.253259][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 1286.253262][ C0] ? process_backlog (./include/linux/local_lock_internal.h:54 net/core/dev.c:6438) 
[ 1286.253266][ C0] process_backlog (./include/linux/rcupdate.h:869 net/core/dev.c:6441) 
[ 1286.253271][ C0] __napi_poll.constprop.0 (net/core/dev.c:7453) 
[ 1286.253275][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.253279][ C0] net_rx_action (net/core/dev.c:7517 net/core/dev.c:7644) 
[ 1286.253285][ C0] ? __pfx_net_rx_action (net/core/dev.c:7606) 
[ 1286.253289][ C0] ? __qdisc_run (net/sched/sch_generic.c:409 net/sched/sch_generic.c:417) 
[ 1286.253295][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 1286.253299][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1286.253303][ C0] ? net_tx_action (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/dev.c:5627) 
[ 1286.253311][ C0] handle_softirqs (kernel/softirq.c:580) 
[ 1286.253315][ C0] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 1286.253319][ C0] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 1286.253323][ C0] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 1286.253326][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 1286.253329][ C0] kthread (kernel/kthread.c:464) 
[ 1286.253334][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1286.253336][ C0] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 1286.253340][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 1286.253343][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 1286.253347][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 1286.253350][ C0] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 1286.253353][ C0] ? __pfx_kthread (kernel/kthread.c:413) 


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock