[ 3812.054294][ C1]
[ 3812.054727][ C1] =============================
[ 3812.054919][ C1] WARNING: suspicious RCU usage
[ 3812.055111][ C1] 6.13.0-virtme #1 Not tainted
[ 3812.055285][ C1] -----------------------------
[ 3812.055452][ C1] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 3812.055735][ C1]
[ 3812.055735][ C1] other info that might help us debug this:
[ 3812.055735][ C1]
[ 3812.056073][ C1]
[ 3812.056073][ C1] rcu_scheduler_active = 2, debug_locks = 1
[ 3812.056312][ C1] 1 lock held by swapper/1/0:
[ 3812.056476][ C1] #0: ffffc900001e0ae8 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 3812.056778][ C1]
[ 3812.056778][ C1] stack backtrace:
[ 3812.056978][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.13.0-virtme #1
[ 3812.056983][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3812.056986][ C1] Call Trace:
[ 3812.056989][ C1]
[ 3812.056995][ C1] dump_stack_lvl+0xb0/0xd0
[ 3812.057010][ C1] lockdep_rcu_suspicious+0x1ea/0x280
[ 3812.057031][ C1] icmp6_send+0x10c7/0x1c00
[ 3812.057040][ C1] ? rcu_read_lock_any_held+0x43/0xb0
[ 3812.057049][ C1] ? validate_chain+0x1fe/0xae0
[ 3812.057061][ C1] ? __pfx_validate_chain+0x10/0x10
[ 3812.057090][ C1] ? __pfx_icmp6_send+0x10/0x10
[ 3812.057110][ C1] ? __pfx_validate_chain+0x10/0x10
[ 3812.057120][ C1] ? hlock_class+0x4e/0x130
[ 3812.057128][ C1] ? mark_lock+0x38/0x3e0
[ 3812.057153][ C1] ? __lock_acquire+0xb9a/0x1680
[ 3812.057169][ C1] ? find_held_lock+0x2c/0x110
[ 3812.057186][ C1] ? __lock_release+0x103/0x460
[ 3812.057193][ C1] ? neigh_invalidate+0x1c7/0x540
[ 3812.057204][ C1] ? __pfx___lock_release+0x10/0x10
[ 3812.057213][ C1] ? lock_acquire.part.0+0xeb/0x330
[ 3812.057242][ C1] ip6_link_failure+0x30/0x430
[ 3812.057260][ C1] ndisc_error_report+0x96/0x170
[ 3812.057274][ C1] neigh_invalidate+0x209/0x540
[ 3812.057298][ C1] neigh_timer_handler+0x87a/0xdf0
[ 3812.057321][ C1] ? __pfx_neigh_timer_handler+0x10/0x10
[ 3812.057330][ C1] call_timer_fn+0x13b/0x230
[ 3812.057338][ C1] ? call_timer_fn+0xe8/0x230
[ 3812.057345][ C1] ? call_timer_fn+0xe8/0x230
[ 3812.057355][ C1] ? __pfx_call_timer_fn+0x10/0x10
[ 3812.057377][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 3812.057408][ C1] __run_timers+0x545/0x810
[ 3812.057418][ C1] ? __pfx_neigh_timer_handler+0x10/0x10
[ 3812.057444][ C1] ? __pfx___run_timers+0x10/0x10
[ 3812.057452][ C1] ? __lock_release+0x103/0x460
[ 3812.057471][ C1] ? do_raw_spin_lock+0x131/0x270
[ 3812.057482][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 3812.057492][ C1] ? lock_acquire+0x32/0xc0
[ 3812.057499][ C1] ? timer_expire_remote+0x96/0xf0
[ 3812.057525][ C1] timer_expire_remote+0x9e/0xf0
[ 3812.057536][ C1] tmigr_handle_remote_cpu+0x278/0x440
[ 3812.057552][ C1] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10
[ 3812.057561][ C1] ? __pfx___lock_release+0x10/0x10
[ 3812.057570][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 3812.057619][ C1] tmigr_handle_remote_up+0x1a6/0x270
[ 3812.057635][ C1] ? __pfx_tmigr_handle_remote_up+0x10/0x10
[ 3812.057649][ C1] __walk_groups.isra.0+0x44/0x160
[ 3812.057669][ C1] tmigr_handle_remote+0x20b/0x300
[ 3812.057680][ C1] ? __pfx_tmigr_handle_remote+0x10/0x10
[ 3812.057687][ C1] ? kvm_clock_get_cycles+0x18/0x30
[ 3812.057693][ C1] ? ktime_get+0xb8/0x200
[ 3812.057711][ C1] ? clockevents_program_event+0x1ea/0x300
[ 3812.057745][ C1] handle_softirqs+0x1f6/0x5c0
[ 3812.057774][ C1] __irq_exit_rcu+0xc4/0x100
[ 3812.057782][ C1] irq_exit_rcu+0xe/0x20
[ 3812.057789][ C1] sysvec_apic_timer_interrupt+0x78/0x90
[ 3812.057800][ C1]
[ 3812.057802][ C1]
[ 3812.057808][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 3812.057816][ C1] RIP: 0010:default_idle+0xf/0x20
[ 3812.057824][ C1] 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 03 ac 0f 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
[ 3812.057830][ C1] RSP: 0018:ffffc90000157df8 EFLAGS: 00000246
[ 3812.057835][ C1] RAX: 000000000b0c16a9 RBX: 1ffff9200002afc1 RCX: ffffffff8d166b35
[ 3812.057840][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8a7733d4
[ 3812.057844][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100da1703a
[ 3812.057848][ C1] R10: ffff88806d0b81d3 R11: ffff888001b0c5c0 R12: 0000000000000000
[ 3812.057852][ C1] R13: ffff888001b0c5c0 R14: dffffc0000000000 R15: 0000000000000000
[ 3812.057876][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0
[ 3812.057886][ C1] ? cpuidle_idle_call+0x1f4/0x280
[ 3812.057904][ C1] default_idle_call+0x6d/0xb0
[ 3812.057910][ C1] cpuidle_idle_call+0x1f4/0x280
[ 3812.057919][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10
[ 3812.057935][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0
[ 3812.057956][ C1] do_idle+0xf6/0x160
[ 3812.057970][ C1] cpu_startup_entry+0x54/0x60
[ 3812.057979][ C1] start_secondary+0x21e/0x2b0
[ 3812.057990][ C1] ? __pfx_start_secondary+0x10/0x10
[ 3812.058017][ C1] common_startup_64+0x12c/0x138
[ 3812.058066][ C1]
[ 3815.318298][ C0]
[ 3815.318552][ C0] =============================
[ 3815.318792][ C0] WARNING: suspicious RCU usage
[ 3815.319012][ C0] 6.13.0-virtme #1 Not tainted
[ 3815.319240][ C0] -----------------------------
[ 3815.319462][ C0] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 3815.319831][ C0]
[ 3815.319831][ C0] other info that might help us debug this:
[ 3815.319831][ C0]
[ 3815.320240][ C0]
[ 3815.320240][ C0] rcu_scheduler_active = 2, debug_locks = 1
[ 3815.320542][ C0] 1 lock held by swapper/0/0:
[ 3815.320752][ C0] #0: ffffc90000007d60 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 3815.321132][ C0]
[ 3815.321132][ C0] stack backtrace:
[ 3815.321389][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-virtme #1
[ 3815.321394][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3815.321398][ C0] Call Trace:
[ 3815.321400][ C0]
[ 3815.321405][ C0] dump_stack_lvl+0xb0/0xd0
[ 3815.321420][ C0] lockdep_rcu_suspicious+0x1ea/0x280
[ 3815.321441][ C0] __icmp_send+0xafd/0x1570
[ 3815.321459][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 3815.321473][ C0] ? trace_lock_acquire+0x14c/0x1f0
[ 3815.321483][ C0] ? find_held_lock+0x2c/0x110
[ 3815.321492][ C0] ? __pfx___icmp_send+0x10/0x10
[ 3815.321505][ C0] ? __lock_release+0x103/0x460
[ 3815.321512][ C0] ? start_dl_timer+0x317/0x4d0
[ 3815.321524][ C0] ? __pfx___lock_release+0x10/0x10
[ 3815.321535][ C0] ? kvm_clock_get_cycles+0x18/0x30
[ 3815.321554][ C0] ? rcu_read_lock_any_held+0x43/0xb0
[ 3815.321563][ C0] ? validate_chain+0x1fe/0xae0
[ 3815.321594][ C0] ? __pfx_validate_chain+0x10/0x10
[ 3815.321605][ C0] ? hlock_class+0x4e/0x130
[ 3815.321613][ C0] ? mark_lock+0x38/0x3e0
[ 3815.321637][ C0] ? __lock_acquire+0xb9a/0x1680
[ 3815.321661][ C0] ipv4_send_dest_unreach+0x3b5/0x820
[ 3815.321675][ C0] ? neigh_invalidate+0x1c7/0x540
[ 3815.321686][ C0] ? __pfx_ipv4_send_dest_unreach+0x10/0x10
[ 3815.321721][ C0] ipv4_link_failure+0x1b/0x190
[ 3815.321736][ C0] arp_error_report+0x96/0x170
[ 3815.321751][ C0] neigh_invalidate+0x209/0x540
[ 3815.321775][ C0] neigh_timer_handler+0x87a/0xdf0
[ 3815.321798][ C0] ? __pfx_neigh_timer_handler+0x10/0x10
[ 3815.321807][ C0] call_timer_fn+0x13b/0x230
[ 3815.321814][ C0] ? call_timer_fn+0xe8/0x230
[ 3815.321821][ C0] ? call_timer_fn+0xe8/0x230
[ 3815.321832][ C0] ? __pfx_call_timer_fn+0x10/0x10
[ 3815.321854][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 3815.321885][ C0] __run_timers+0x545/0x810
[ 3815.321894][ C0] ? __pfx_neigh_timer_handler+0x10/0x10
[ 3815.321921][ C0] ? __pfx___run_timers+0x10/0x10
[ 3815.321928][ C0] ? clockevents_program_event+0xf6/0x300
[ 3815.321951][ C0] ? do_raw_spin_lock+0x131/0x270
[ 3815.321962][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 3815.321972][ C0] ? lock_acquire+0x32/0xc0
[ 3815.321979][ C0] ? run_timer_softirq+0xe6/0x1c0
[ 3815.322004][ C0] run_timer_softirq+0xee/0x1c0
[ 3815.322017][ C0] handle_softirqs+0x1f6/0x5c0
[ 3815.322047][ C0] __irq_exit_rcu+0xc4/0x100
[ 3815.322056][ C0] irq_exit_rcu+0xe/0x20
[ 3815.322062][ C0] sysvec_apic_timer_interrupt+0x78/0x90
[ 3815.322074][ C0]
[ 3815.322077][ C0]
[ 3815.322083][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 3815.322091][ C0] RIP: 0010:default_idle+0xf/0x20
[ 3815.322098][ 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 03 ac 0f 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
[ 3815.322104][ C0] RSP: 0018:ffffffff8de07e00 EFLAGS: 00000242
[ 3815.322109][ C0] RAX: 0000000004b00fa7 RBX: 1ffffffff1bc0fc2 RCX: ffffffff8d166b35
[ 3815.322114][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8a7733d4
[ 3815.322118][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100da0703a
[ 3815.322122][ C0] R10: ffff88806d0381d3 R11: ffffffff8de30fc0 R12: 0000000000000000
[ 3815.322127][ C0] R13: ffffffff8de30fc0 R14: dffffc0000000000 R15: 0000000000014770
[ 3815.322151][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0
[ 3815.322161][ C0] ? cpuidle_idle_call+0x1f4/0x280
[ 3815.322176][ C0] default_idle_call+0x6d/0xb0
[ 3815.322197][ C0] cpuidle_idle_call+0x1f4/0x280
[ 3815.322200][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10
[ 3815.322207][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0
[ 3815.322217][ C0] do_idle+0xf6/0x160
[ 3815.322222][ C0] cpu_startup_entry+0x54/0x60
[ 3815.322226][ C0] rest_init+0x14f/0x260
[ 3815.322232][ C0] start_kernel+0x350/0x410
[ 3815.322239][ C0] x86_64_start_reservations+0x18/0x30
[ 3815.322243][ C0] x86_64_start_kernel+0xba/0x110
[ 3815.322248][ C0] common_startup_64+0x12c/0x138
[ 3815.322267][ C0]