[ 1628.226102][    C0] 
[ 1628.226577][    C0] =============================
[ 1628.226914][    C0] WARNING: suspicious RCU usage
[ 1628.227297][    C0] 6.13.0-virtme #1 Not tainted
[ 1628.227657][    C0] -----------------------------
[ 1628.228015][    C0] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 1628.228647][    C0] 
[ 1628.228647][    C0] other info that might help us debug this:
[ 1628.228647][    C0] 
[ 1628.229337][    C0] 
[ 1628.229337][    C0] rcu_scheduler_active = 2, debug_locks = 1
[ 1628.229855][    C0] 1 lock held by swapper/0/0:
[ 1628.230217][    C0]  #0: ffffc90000007d60 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 1628.230857][    C0] 
[ 1628.230857][    C0] stack backtrace:
[ 1628.231197][    C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-virtme #1
[ 1628.231202][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1628.231206][    C0] Call Trace:
[ 1628.231208][    C0]  <IRQ>
[ 1628.231213][    C0]  dump_stack_lvl+0xb0/0xd0
[ 1628.231228][    C0]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1628.231250][    C0]  __icmp_send+0xafd/0x1570
[ 1628.231286][    C0]  ? __pfx___icmp_send+0x10/0x10
[ 1628.231294][    C0]  ? do_raw_spin_trylock+0x130/0x190
[ 1628.231314][    C0]  ? start_dl_timer+0x317/0x4d0
[ 1628.231338][    C0]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1628.231346][    C0]  ? validate_chain+0x1fe/0xae0
[ 1628.231377][    C0]  ? __pfx_validate_chain+0x10/0x10
[ 1628.231387][    C0]  ? hlock_class+0x4e/0x130
[ 1628.231395][    C0]  ? mark_lock+0x38/0x3e0
[ 1628.231401][    C0]  ? __pfx___lock_release+0x10/0x10
[ 1628.231422][    C0]  ? __lock_acquire+0xb9a/0x1680
[ 1628.231431][    C0]  ipv4_send_dest_unreach+0x3b5/0x820
[ 1628.231437][    C0]  ? neigh_invalidate+0x1c7/0x540
[ 1628.231442][    C0]  ? __pfx_ipv4_send_dest_unreach+0x10/0x10
[ 1628.231454][    C0]  ipv4_link_failure+0x1b/0x190
[ 1628.231459][    C0]  arp_error_report+0x96/0x170
[ 1628.231466][    C0]  neigh_invalidate+0x209/0x540
[ 1628.231475][    C0]  neigh_timer_handler+0x87a/0xdf0
[ 1628.231486][    C0]  ? __pfx_neigh_timer_handler+0x10/0x10
[ 1628.231492][    C0]  call_timer_fn+0x13b/0x230
[ 1628.231497][    C0]  ? call_timer_fn+0xe8/0x230
[ 1628.231501][    C0]  ? call_timer_fn+0xe8/0x230
[ 1628.231507][    C0]  ? __pfx_call_timer_fn+0x10/0x10
[ 1628.231529][    C0]  ? _raw_spin_unlock_irq+0x28/0x50
[ 1628.231544][    C0]  __run_timers+0x545/0x810
[ 1628.231550][    C0]  ? __pfx_neigh_timer_handler+0x10/0x10
[ 1628.231568][    C0]  ? __pfx___run_timers+0x10/0x10
[ 1628.231573][    C0]  ? clockevents_program_event+0xf6/0x300
[ 1628.231590][    C0]  ? do_raw_spin_lock+0x131/0x270
[ 1628.231600][    C0]  ? __pfx_do_raw_spin_lock+0x10/0x10
[ 1628.231608][    C0]  ? lock_acquire+0x32/0xc0
[ 1628.231613][    C0]  ? run_timer_softirq+0xe6/0x1c0
[ 1628.231632][    C0]  run_timer_softirq+0xee/0x1c0
[ 1628.231641][    C0]  handle_softirqs+0x1f6/0x5c0
[ 1628.231663][    C0]  __irq_exit_rcu+0xc4/0x100
[ 1628.231668][    C0]  irq_exit_rcu+0xe/0x20
[ 1628.231671][    C0]  sysvec_apic_timer_interrupt+0x78/0x90
[ 1628.231679][    C0]  </IRQ>
[ 1628.231681][    C0]  <TASK>
[ 1628.231684][    C0]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 1628.231691][    C0] RIP: 0010:default_idle+0xf/0x20
[ 1628.231696][    C0] 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 2c 13 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
[ 1628.231701][    C0] RSP: 0018:ffffffffa3e07e00 EFLAGS: 00000242
[ 1628.231706][    C0] RAX: 0000000001f5794f RBX: 1ffffffff47c0fc2 RCX: ffffffffa312eb15
[ 1628.231709][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa0969aa4
[ 1628.231712][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0703a
[ 1628.231715][    C0] R10: ffff8880360381d3 R11: ffffffffa3e1cfc0 R12: 0000000000000000
[ 1628.231718][    C0] R13: ffffffffa3e1cfc0 R14: dffffc0000000000 R15: 0000000000014770
[ 1628.231736][    C0]  ? ct_kernel_exit.constprop.0+0xc5/0xf0
[ 1628.231743][    C0]  ? cpuidle_idle_call+0x1f4/0x280
[ 1628.231756][    C0]  default_idle_call+0x6d/0xb0
[ 1628.231761][    C0]  cpuidle_idle_call+0x1f4/0x280
[ 1628.231769][    C0]  ? __pfx_cpuidle_idle_call+0x10/0x10
[ 1628.231783][    C0]  ? tsc_verify_tsc_adjust+0x5e/0x2b0
[ 1628.231800][    C0]  do_idle+0xf6/0x160
[ 1628.231812][    C0]  cpu_startup_entry+0x54/0x60
[ 1628.231821][    C0]  rest_init+0x14f/0x260
[ 1628.231830][    C0]  start_kernel+0x350/0x410
[ 1628.231841][    C0]  x86_64_start_reservations+0x18/0x30
[ 1628.231847][    C0]  x86_64_start_kernel+0xba/0x110
[ 1628.231856][    C0]  common_startup_64+0x12c/0x138
[ 1628.231887][    C0]  </TASK>