[  965.491317][    C0] 
[  965.491741][    C0] =============================
[  965.491972][    C0] WARNING: suspicious RCU usage
[  965.492188][    C0] 6.13.0-virtme #1 Not tainted
[  965.492428][    C0] -----------------------------
[  965.492648][    C0] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[  965.493012][    C0] 
[  965.493012][    C0] other info that might help us debug this:
[  965.493012][    C0] 
[  965.493434][    C0] 
[  965.493434][    C0] rcu_scheduler_active = 2, debug_locks = 1
[  965.493753][    C0] 1 lock held by swapper/0/0:
[  965.493969][    C0]  #0: ffffc90000007d60 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[  965.494381][    C0] 
[  965.494381][    C0] stack backtrace:
[  965.494672][    C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-virtme #1
[  965.494676][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  965.494678][    C0] Call Trace:
[  965.494680][    C0]  <IRQ>
[  965.494682][    C0]  dump_stack_lvl+0xb0/0xd0
[  965.494691][    C0]  lockdep_rcu_suspicious+0x1ea/0x280
[  965.494702][    C0]  __icmp_send+0xb0d/0x1580
[  965.494712][    C0]  ? mark_held_locks+0x9e/0xe0
[  965.494720][    C0]  ? lockdep_hardirqs_on_prepare+0x12b/0x410
[  965.494725][    C0]  ? __pfx___icmp_send+0x10/0x10
[  965.494732][    C0]  ? __kfree_skb+0x12/0x60
[  965.494740][    C0]  ? mptcp_sendmsg_frag+0x8bd/0x2e70
[  965.494752][    C0]  ? rcu_read_lock_any_held+0x43/0xb0
[  965.494760][    C0]  ? validate_chain+0x1fe/0xae0
[  965.494772][    C0]  ? __pfx_validate_chain+0x10/0x10
[  965.494777][    C0]  ? hlock_class+0x4e/0x130
[  965.494780][    C0]  ? mark_lock+0x38/0x3e0
[  965.494790][    C0]  ? __lock_acquire+0xb9a/0x1680
[  965.494799][    C0]  ipv4_send_dest_unreach+0x3b4/0x800
[  965.494808][    C0]  ? neigh_invalidate+0x1c7/0x540
[  965.494815][    C0]  ? __pfx_ipv4_send_dest_unreach+0x10/0x10
[  965.494829][    C0]  ipv4_link_failure+0x1b/0x190
[  965.494835][    C0]  arp_error_report+0x96/0x170
[  965.494842][    C0]  neigh_invalidate+0x209/0x540
[  965.494852][    C0]  neigh_timer_handler+0x87a/0xdf0
[  965.494862][    C0]  ? __pfx_neigh_timer_handler+0x10/0x10
[  965.494866][    C0]  call_timer_fn+0x13b/0x230
[  965.494869][    C0]  ? call_timer_fn+0xe8/0x230
[  965.494872][    C0]  ? call_timer_fn+0xe8/0x230
[  965.494876][    C0]  ? __pfx_call_timer_fn+0x10/0x10
[  965.494879][    C0]  ? mark_lock+0x38/0x3e0
[  965.494897][    C0]  __run_timers+0x545/0x810
[  965.494903][    C0]  ? __pfx_neigh_timer_handler+0x10/0x10
[  965.494913][    C0]  ? __pfx___run_timers+0x10/0x10
[  965.494916][    C0]  ? clockevents_program_event+0xf6/0x300
[  965.494925][    C0]  ? do_raw_spin_lock+0x131/0x270
[  965.494930][    C0]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  965.494934][    C0]  ? lock_acquire+0x32/0xc0
[  965.494936][    C0]  ? run_timer_softirq+0xe6/0x1c0
[  965.494946][    C0]  run_timer_softirq+0xee/0x1c0
[  965.494951][    C0]  handle_softirqs+0x1f6/0x5c0
[  965.494966][    C0]  __irq_exit_rcu+0xc4/0x100
[  965.494970][    C0]  irq_exit_rcu+0xe/0x20
[  965.494973][    C0]  sysvec_apic_timer_interrupt+0x78/0x90
[  965.494977][    C0]  </IRQ>
[  965.494978][    C0]  <TASK>
[  965.494980][    C0]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  965.494986][    C0] RIP: 0010:default_idle+0xf/0x20
[  965.494990][    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 8c 0a 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
[  965.494992][    C0] RSP: 0018:ffffffff8e207e00 EFLAGS: 00000246
[  965.494995][    C0] RAX: 0000000001763509 RBX: 1ffffffff1c40fc2 RCX: ffffffff8d5b8b15
[  965.494997][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8ad6a634
[  965.494999][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0703a
[  965.495000][    C0] R10: ffff8880360381d3 R11: ffffffff8e240fc0 R12: 0000000000000000
[  965.495002][    C0] R13: ffffffff8e240fc0 R14: dffffc0000000000 R15: 0000000000014770
[  965.495011][    C0]  ? ct_kernel_exit.constprop.0+0xc5/0xf0
[  965.495016][    C0]  ? cpuidle_idle_call+0x1f4/0x280
[  965.495024][    C0]  default_idle_call+0x6d/0xb0
[  965.495027][    C0]  cpuidle_idle_call+0x1f4/0x280
[  965.495031][    C0]  ? __pfx_cpuidle_idle_call+0x10/0x10
[  965.495037][    C0]  ? tsc_verify_tsc_adjust+0x5e/0x2b0
[  965.495050][    C0]  do_idle+0xf6/0x160
[  965.495056][    C0]  cpu_startup_entry+0x54/0x60
[  965.495060][    C0]  rest_init+0x14f/0x260
[  965.495066][    C0]  start_kernel+0x350/0x410
[  965.495073][    C0]  x86_64_start_reservations+0x18/0x30
[  965.495077][    C0]  x86_64_start_kernel+0xba/0x110
[  965.495082][    C0]  common_startup_64+0x12c/0x138
[  965.495102][    C0]  </TASK>
[ 2443.912548][T28919] pm_nl_ctl (28919) used greatest stack depth: 22784 bytes left