[  172.301204][    C2] 
[  172.301714][    C2] =============================
[  172.301928][    C2] WARNING: suspicious RCU usage
[  172.302121][    C2] 6.13.0-virtme #1 Not tainted
[  172.302341][    C2] -----------------------------
[  172.302531][    C2] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[  172.302850][    C2] 
[  172.302850][    C2] other info that might help us debug this:
[  172.302850][    C2] 
[  172.303223][    C2] 
[  172.303223][    C2] rcu_scheduler_active = 2, debug_locks = 1
[  172.303497][    C2] 1 lock held by swapper/2/0:
[  172.303720][    C2]  #0: ffffc90000238d60 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[  172.304219][    C2] 
[  172.304219][    C2] stack backtrace:
[  172.304436][    C2] CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 6.13.0-virtme #1
[  172.304440][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  172.304443][    C2] Call Trace:
[  172.304445][    C2]  <IRQ>
[  172.304449][    C2]  dump_stack_lvl+0xb0/0xd0
[  172.304457][    C2]  lockdep_rcu_suspicious+0x1ea/0x280
[  172.304467][    C2]  __icmp_send+0xb0d/0x1580
[  172.304474][    C2]  ? update_sg_lb_stats.constprop.0+0x9d1/0x1320
[  172.304486][    C2]  ? __pfx___icmp_send+0x10/0x10
[  172.304496][    C2]  ? update_sd_lb_stats.constprop.0+0x14d/0xc60
[  172.304504][    C2]  ? rcu_read_lock_any_held+0x43/0xb0
[  172.304510][    C2]  ? validate_chain+0x1fe/0xae0
[  172.304522][    C2]  ? __pfx_validate_chain+0x10/0x10
[  172.304526][    C2]  ? hlock_class+0x4e/0x130
[  172.304529][    C2]  ? mark_lock+0x38/0x3e0
[  172.304538][    C2]  ? __lock_acquire+0xb9a/0x1680
[  172.304547][    C2]  ipv4_send_dest_unreach+0x3b4/0x800
[  172.304553][    C2]  ? neigh_invalidate+0x1c7/0x540
[  172.304558][    C2]  ? __pfx_ipv4_send_dest_unreach+0x10/0x10
[  172.304571][    C2]  ipv4_link_failure+0x1b/0x190
[  172.304576][    C2]  arp_error_report+0x96/0x170
[  172.304583][    C2]  neigh_invalidate+0x209/0x540
[  172.304592][    C2]  neigh_timer_handler+0x87a/0xdf0
[  172.304602][    C2]  ? __pfx_neigh_timer_handler+0x10/0x10
[  172.304605][    C2]  call_timer_fn+0x13b/0x230
[  172.304608][    C2]  ? call_timer_fn+0xe8/0x230
[  172.304611][    C2]  ? call_timer_fn+0xe8/0x230
[  172.304615][    C2]  ? __pfx_call_timer_fn+0x10/0x10
[  172.304618][    C2]  ? mark_lock+0x38/0x3e0
[  172.304635][    C2]  __run_timers+0x545/0x810
[  172.304639][    C2]  ? __pfx_neigh_timer_handler+0x10/0x10
[  172.304649][    C2]  ? __pfx___run_timers+0x10/0x10
[  172.304652][    C2]  ? clockevents_program_event+0xf6/0x300
[  172.304661][    C2]  ? do_raw_spin_lock+0x131/0x270
[  172.304668][    C2]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  172.304672][    C2]  ? lock_acquire+0x32/0xc0
[  172.304676][    C2]  ? run_timer_softirq+0xe6/0x1c0
[  172.304685][    C2]  run_timer_softirq+0xee/0x1c0
[  172.304690][    C2]  handle_softirqs+0x1f6/0x5c0
[  172.304702][    C2]  __irq_exit_rcu+0xc4/0x100
[  172.304705][    C2]  irq_exit_rcu+0xe/0x20
[  172.304708][    C2]  sysvec_apic_timer_interrupt+0x78/0x90
[  172.304712][    C2]  </IRQ>
[  172.304713][    C2]  <TASK>
[  172.304716][    C2]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  172.304720][    C2] RIP: 0010:default_idle+0xf/0x20
[  172.304725][    C2] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 23 cc 14 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
[  172.304728][    C2] RSP: 0018:ffffc90000167df8 EFLAGS: 00000242
[  172.304731][    C2] RAX: 000000000030346b RBX: 1ffff9200002cfc1 RCX: ffffffffa6314b15
[  172.304734][    C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa3b69634
[  172.304736][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2703a
[  172.304737][    C2] R10: ffff8880361381d3 R11: ffff888001b38040 R12: 0000000000000000
[  172.304739][    C2] R13: ffff888001b38040 R14: dffffc0000000000 R15: 0000000000000000
[  172.304749][    C2]  ? ct_kernel_exit.constprop.0+0xc5/0xf0
[  172.304753][    C2]  ? cpuidle_idle_call+0x1f4/0x280
[  172.304762][    C2]  default_idle_call+0x6d/0xb0
[  172.304765][    C2]  cpuidle_idle_call+0x1f4/0x280
[  172.304769][    C2]  ? __pfx_cpuidle_idle_call+0x10/0x10
[  172.304777][    C2]  ? tsc_verify_tsc_adjust+0x5e/0x2b0
[  172.304786][    C2]  do_idle+0xf6/0x160
[  172.304792][    C2]  cpu_startup_entry+0x54/0x60
[  172.304797][    C2]  start_secondary+0x21e/0x2b0
[  172.304801][    C2]  ? __pfx_start_secondary+0x10/0x10
[  172.304811][    C2]  common_startup_64+0x12c/0x138
[  172.304831][    C2]  </TASK>