[  636.788071][ T3091] gre: GRE over IPv4 demultiplexor driver
[  636.840124][ T3091] ip6_gre: GRE over IPv6 tunneling driver
[  655.522174][    C2] 
[  655.522654][    C2] =============================
[  655.522836][    C2] WARNING: suspicious RCU usage
[  655.523019][    C2] 6.13.0-virtme #1 Not tainted
[  655.523611][    C2] -----------------------------
[  655.523797][    C2] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[  655.524082][    C2] 
[  655.524082][    C2] other info that might help us debug this:
[  655.524082][    C2] 
[  655.524479][    C2] 
[  655.524479][    C2] rcu_scheduler_active = 2, debug_locks = 1
[  655.524729][    C2] 1 lock held by ksoftirqd/2/29:
[  655.524924][    C2]  #0: ffffc9000020fbc0 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[  655.525323][    C2] 
[  655.525323][    C2] stack backtrace:
[  655.525576][    C2] CPU: 2 UID: 0 PID: 29 Comm: ksoftirqd/2 Not tainted 6.13.0-virtme #1
[  655.525580][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  655.525583][    C2] Call Trace:
[  655.525584][    C2]  <TASK>
[  655.525588][    C2]  dump_stack_lvl+0xb0/0xd0
[  655.525596][    C2]  lockdep_rcu_suspicious+0x1ea/0x280
[  655.525606][    C2]  __icmp_send+0xb0d/0x1580
[  655.525617][    C2]  ? arch_stack_walk+0x68/0xf0
[  655.525628][    C2]  ? unwind_next_frame+0x1d2/0x1d00
[  655.525633][    C2]  ? __pfx___icmp_send+0x10/0x10
[  655.525641][    C2]  ? __pfx_unwind_next_frame+0x10/0x10
[  655.525651][    C2]  ? rcu_read_lock_any_held+0x43/0xb0
[  655.525658][    C2]  ? validate_chain+0x1fe/0xae0
[  655.525672][    C2]  ? __pfx_validate_chain+0x10/0x10
[  655.525676][    C2]  ? hlock_class+0x4e/0x130
[  655.525679][    C2]  ? mark_lock+0x38/0x3e0
[  655.525689][    C2]  ? __lock_acquire+0xb9a/0x1680
[  655.525698][    C2]  ipv4_send_dest_unreach+0x3b4/0x800
[  655.525704][    C2]  ? neigh_invalidate+0x1c7/0x540
[  655.525709][    C2]  ? __pfx_ipv4_send_dest_unreach+0x10/0x10
[  655.525722][    C2]  ipv4_link_failure+0x1b/0x190
[  655.525727][    C2]  arp_error_report+0x96/0x170
[  655.525734][    C2]  neigh_invalidate+0x209/0x540
[  655.525743][    C2]  neigh_timer_handler+0x87a/0xdf0
[  655.525752][    C2]  ? __pfx_neigh_timer_handler+0x10/0x10
[  655.525755][    C2]  call_timer_fn+0x13b/0x230
[  655.525759][    C2]  ? call_timer_fn+0xe8/0x230
[  655.525762][    C2]  ? call_timer_fn+0xe8/0x230
[  655.525766][    C2]  ? __pfx_call_timer_fn+0x10/0x10
[  655.525768][    C2]  ? mark_lock+0x38/0x3e0
[  655.525786][    C2]  __run_timers+0x545/0x810
[  655.525789][    C2]  ? __pfx_neigh_timer_handler+0x10/0x10
[  655.525800][    C2]  ? __pfx___run_timers+0x10/0x10
[  655.525808][    C2]  ? do_raw_spin_lock+0x131/0x270
[  655.525814][    C2]  ? __pfx_do_raw_spin_lock+0x10/0x10
[  655.525818][    C2]  ? lock_acquire+0x32/0xc0
[  655.525821][    C2]  ? run_timer_softirq+0xe6/0x1c0
[  655.525831][    C2]  run_timer_softirq+0xee/0x1c0
[  655.525836][    C2]  handle_softirqs+0x1f6/0x5c0
[  655.525844][    C2]  ? __pfx_run_ksoftirqd+0x10/0x10
[  655.525850][    C2]  run_ksoftirqd+0x33/0x60
[  655.525852][    C2]  smpboot_thread_fn+0x306/0x850
[  655.525859][    C2]  ? __pfx_smpboot_thread_fn+0x10/0x10
[  655.525865][    C2]  kthread+0x359/0x5d0
[  655.525871][    C2]  ? __pfx_kthread+0x10/0x10
[  655.525880][    C2]  ? __pfx_kthread+0x10/0x10
[  655.525886][    C2]  ret_from_fork+0x31/0x70
[  655.525890][    C2]  ? __pfx_kthread+0x10/0x10
[  655.525894][    C2]  ret_from_fork_asm+0x1a/0x30
[  655.525912][    C2]  </TASK>