[ 12.123677][ T261] ip (261) used greatest stack depth: 24192 bytes left
[ 33.056586][ C2]
[ 33.056999][ C2] =============================
[ 33.057217][ C2] WARNING: suspicious RCU usage
[ 33.057449][ C2] 6.13.0-virtme #1 Not tainted
[ 33.057681][ C2] -----------------------------
[ 33.057924][ C2] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 33.058275][ C2]
[ 33.058275][ C2] other info that might help us debug this:
[ 33.058275][ C2]
[ 33.058716][ C2]
[ 33.058716][ C2] rcu_scheduler_active = 2, debug_locks = 1
[ 33.059049][ C2] 2 locks held by mausezahn/448:
[ 33.059259][ C2] #0: ffffffffa5d42e30 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x88/0x1e0
[ 33.059705][ C2] #1: ffffc90000238ae8 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 33.060071][ C2]
[ 33.060071][ C2] stack backtrace:
[ 33.060323][ C2] CPU: 2 UID: 0 PID: 448 Comm: mausezahn Not tainted 6.13.0-virtme #1
[ 33.060329][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 33.060331][ C2] Call Trace:
[ 33.060334][ C2]
[ 33.060337][ C2] dump_stack_lvl+0xb0/0xd0
[ 33.060345][ C2] lockdep_rcu_suspicious+0x1ea/0x280
[ 33.060356][ C2] __icmp_send+0xb0d/0x1580
[ 33.060367][ C2] ? is_bpf_text_address+0x71/0x120
[ 33.060376][ C2] ? kernel_text_address+0xce/0xe0
[ 33.060387][ C2] ? __pfx___icmp_send+0x10/0x10
[ 33.060389][ C2] ? unwind_get_return_address+0x5e/0xa0
[ 33.060395][ C2] ? write_profile+0x30/0x100
[ 33.060400][ C2] ? arch_stack_walk+0xa2/0xf0
[ 33.060414][ C2] ? rcu_read_lock_any_held+0x43/0xb0
[ 33.060420][ C2] ? validate_chain+0x1fe/0xae0
[ 33.060432][ C2] ? __pfx_validate_chain+0x10/0x10
[ 33.060436][ C2] ? hlock_class+0x4e/0x130
[ 33.060440][ C2] ? mark_lock+0x38/0x3e0
[ 33.060449][ C2] ? __lock_acquire+0xb9a/0x1680
[ 33.060458][ C2] ipv4_send_dest_unreach+0x3b4/0x800
[ 33.060465][ C2] ? neigh_invalidate+0x1c7/0x540
[ 33.060471][ C2] ? __pfx_ipv4_send_dest_unreach+0x10/0x10
[ 33.060484][ C2] ipv4_link_failure+0x1b/0x190
[ 33.060489][ C2] arp_error_report+0x96/0x170
[ 33.060497][ C2] neigh_invalidate+0x209/0x540
[ 33.060506][ C2] neigh_timer_handler+0x87a/0xdf0
[ 33.060516][ C2] ? __pfx_neigh_timer_handler+0x10/0x10
[ 33.060519][ C2] call_timer_fn+0x13b/0x230
[ 33.060522][ C2] ? call_timer_fn+0xe8/0x230
[ 33.060525][ C2] ? call_timer_fn+0xe8/0x230
[ 33.060529][ C2] ? __pfx_call_timer_fn+0x10/0x10
[ 33.060532][ C2] ? hlock_class+0x4e/0x130
[ 33.060540][ C2] ? mark_held_locks+0x9e/0xe0
[ 33.060551][ C2] __run_timers+0x545/0x810
[ 33.060554][ C2] ? __pfx_neigh_timer_handler+0x10/0x10
[ 33.060566][ C2] ? __pfx___run_timers+0x10/0x10
[ 33.060569][ C2] ? __lock_release+0x103/0x460
[ 33.060576][ C2] ? do_raw_spin_lock+0x131/0x270
[ 33.060584][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 33.060588][ C2] ? lock_acquire+0x32/0xc0
[ 33.060591][ C2] ? timer_expire_remote+0x96/0xf0
[ 33.060601][ C2] timer_expire_remote+0x9e/0xf0
[ 33.060605][ C2] tmigr_handle_remote_cpu+0x278/0x440
[ 33.060613][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10
[ 33.060616][ C2] ? __pfx___lock_release+0x10/0x10
[ 33.060621][ C2] ? hlock_class+0x4e/0x130
[ 33.060624][ C2] ? mark_lock+0x38/0x3e0
[ 33.060630][ C2] ? mark_held_locks+0x9e/0xe0
[ 33.060641][ C2] tmigr_handle_remote_up+0x1a6/0x270
[ 33.060647][ C2] ? __pfx_tmigr_handle_remote_up+0x10/0x10
[ 33.060652][ C2] __walk_groups.isra.0+0x44/0x160
[ 33.060663][ C2] tmigr_handle_remote+0x20b/0x300
[ 33.060668][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10
[ 33.060672][ C2] ? hlock_class+0x4e/0x130
[ 33.060680][ C2] ? mark_held_locks+0x9e/0xe0
[ 33.060689][ C2] handle_softirqs+0x1f6/0x5c0
[ 33.060702][ C2] __irq_exit_rcu+0xc4/0x100
[ 33.060706][ C2] irq_exit_rcu+0xe/0x20
[ 33.060709][ C2] sysvec_apic_timer_interrupt+0x78/0x90
[ 33.060715][ C2]
[ 33.060716][ C2]
[ 33.060718][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 33.060724][ C2] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 33.060728][ C2] Code: 10 e8 81 74 88 fd 48 89 ef e8 c9 e4 88 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 75 7d 50 5b <74> 0e 5b 5d c3 cc cc cc cc e8 8f 03 ae fd eb dc 0f 1f 44 00 00 5b
[ 33.060731][ C2] RSP: 0018:ffffc90000517648 EFLAGS: 00000286
[ 33.060734][ C2] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff4f864c3
[ 33.060736][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa4b34761
[ 33.060738][ C2] RBP: ffff888001040900 R08: 0000000000000001 R09: fffffbfff4f843e5
[ 33.060740][ C2] R10: ffffffffa7c21f2f R11: ffff88800daa0040 R12: ffff88800dcb5700
[ 33.060741][ C2] R13: 0000000000000000 R14: ffffc90000517698 R15: ffff88800b6d22e4
[ 33.060753][ C2] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 33.060761][ C2] qlist_free_all+0x4c/0x120
[ 33.060769][ C2] kasan_quarantine_reduce+0x195/0x1e0
[ 33.060775][ C2] __kasan_slab_alloc+0x49/0x70
[ 33.060784][ C2] kmem_cache_alloc_node_noprof+0x110/0x360
[ 33.060805][ C2] __alloc_skb+0x215/0x2e0
[ 33.060815][ C2] ? __pfx___alloc_skb+0x10/0x10
[ 33.060823][ C2] ? __lock_acquire+0xb9a/0x1680
[ 33.060834][ C2] alloc_skb_with_frags+0xbb/0x840
[ 33.060840][ C2] ? find_held_lock+0x2c/0x110
[ 33.060850][ C2] sock_alloc_send_pskb+0x660/0x7f0
[ 33.060855][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 33.060860][ C2] ? find_held_lock+0x2c/0x110
[ 33.060871][ C2] ? __pfx_sock_alloc_send_pskb+0x10/0x10
[ 33.060877][ C2] ? rt_is_expired+0x12c/0x270
[ 33.060881][ C2] ? __mkroute_output+0xbb1/0xf50
[ 33.060886][ C2] ? ip_route_output_key_hash+0x13c/0x260
[ 33.060896][ C2] raw_send_hdrinc+0x251/0x1830
[ 33.060910][ C2] ? __pfx_raw_send_hdrinc+0x10/0x10
[ 33.060924][ C2] raw_sendmsg+0x1133/0x17e0
[ 33.060928][ C2] ? mark_lock_irq+0x981/0xa10
[ 33.060939][ C2] ? __pfx_raw_sendmsg+0x10/0x10
[ 33.060943][ C2] ? synchronize_rcu_tasks_trace+0x21/0x80
[ 33.060962][ C2] ? __lock_release+0x103/0x460
[ 33.060964][ C2] ? __might_fault+0x11b/0x170
[ 33.060972][ C2] ? __pfx___lock_release+0x10/0x10
[ 33.060976][ C2] ? trace_lock_acquire+0x14c/0x1f0
[ 33.060978][ C2] ? __lock_acquire+0xb9a/0x1680
[ 33.060985][ C2] ? lock_acquire+0x32/0xc0
[ 33.060987][ C2] ? __might_fault+0xc3/0x170
[ 33.060993][ C2] ? __might_fault+0x11b/0x170
[ 33.061003][ C2] __sys_sendto+0x37a/0x450
[ 33.061011][ C2] ? __pfx___sys_sendto+0x10/0x10
[ 33.061014][ C2] ? __pfx___lock_release+0x10/0x10
[ 33.061017][ C2] ? trace_lock_acquire+0x14c/0x1f0
[ 33.061030][ C2] ? rseq_update_cpu_node_id+0xe6/0x140
[ 33.061037][ C2] ? __rseq_handle_notify_resume+0x288/0x3e0
[ 33.061043][ C2] ? __pfx___rseq_handle_notify_resume+0x10/0x10
[ 33.061051][ C2] ? __pfx___rseq_handle_notify_resume+0x10/0x10
[ 33.061061][ C2] __x64_sys_sendto+0xe0/0x1c0
[ 33.061065][ C2] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 33.061070][ C2] do_syscall_64+0xc1/0x1d0
[ 33.061077][ C2] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 33.061081][ C2] RIP: 0033:0x7fc6252f5a4a
[ 33.061085][ C2] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
[ 33.061088][ C2] RSP: 002b:00007ffc888478e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 33.061090][ C2] RAX: ffffffffffffffda RBX: 00000000303e09d0 RCX: 00007fc6252f5a4a
[ 33.061092][ C2] RDX: 000000000000005c RSI: 00000000303e05c0 RDI: 0000000000000005
[ 33.061094][ C2] RBP: 00000000303e09d0 R08: 00007ffc888478f0 R09: 0000000000000010
[ 33.061096][ C2] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000005c
[ 33.061097][ C2] R13: 0000000000000032 R14: 0000000000000000 R15: 0000000000000000
[ 33.061113][ C2]
[ 68.768589][ C3]
[ 68.768808][ C3] =============================
[ 68.769121][ C3] WARNING: suspicious RCU usage
[ 68.769429][ C3] 6.13.0-virtme #1 Not tainted
[ 68.770067][ C3] -----------------------------
[ 68.770398][ C3] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 68.770969][ C3]
[ 68.770969][ C3] other info that might help us debug this:
[ 68.770969][ C3]
[ 68.771647][ C3]
[ 68.771647][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 68.772114][ C3] 3 locks held by ip/628:
[ 68.772353][ C3] #0: ffff88800b4a63a0 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0xdf/0x2e0
[ 68.772951][ C3] #1: ffffffffa5d42e30 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x88/0x1e0
[ 68.773615][ C3] #2: ffffc90000290d60 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 68.774191][ C3]
[ 68.774191][ C3] stack backtrace:
[ 68.774658][ C3] CPU: 3 UID: 0 PID: 628 Comm: ip Not tainted 6.13.0-virtme #1
[ 68.774665][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 68.774669][ C3] Call Trace:
[ 68.774672][ C3]
[ 68.774676][ C3] dump_stack_lvl+0xb0/0xd0
[ 68.774688][ C3] lockdep_rcu_suspicious+0x1ea/0x280
[ 68.774704][ C3] icmp6_send+0x10ab/0x1bf0
[ 68.774739][ C3] ? __pfx_icmp6_send+0x10/0x10
[ 68.774754][ C3] ? __pfx_validate_chain+0x10/0x10
[ 68.774762][ C3] ? hlock_class+0x4e/0x130
[ 68.774768][ C3] ? mark_lock+0x38/0x3e0
[ 68.774786][ C3] ? __lock_acquire+0xb9a/0x1680
[ 68.774797][ C3] ? find_held_lock+0x2c/0x110
[ 68.774808][ C3] ? __lock_release+0x103/0x460
[ 68.774813][ C3] ? neigh_invalidate+0x1c7/0x540
[ 68.774821][ C3] ? __pfx___lock_release+0x10/0x10
[ 68.774827][ C3] ? lock_acquire.part.0+0xeb/0x330
[ 68.774849][ C3] ip6_link_failure+0x30/0x430
[ 68.774863][ C3] ndisc_error_report+0x96/0x170
[ 68.774877][ C3] neigh_invalidate+0x209/0x540
[ 68.774895][ C3] neigh_timer_handler+0x87a/0xdf0
[ 68.774913][ C3] ? __pfx_neigh_timer_handler+0x10/0x10
[ 68.774918][ C3] call_timer_fn+0x13b/0x230
[ 68.774924][ C3] ? call_timer_fn+0xe8/0x230
[ 68.774927][ C3] ? call_timer_fn+0xe8/0x230
[ 68.774935][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 68.774940][ C3] ? hlock_class+0x4e/0x130
[ 68.774956][ C3] ? mark_held_locks+0x9e/0xe0
[ 68.774975][ C3] __run_timers+0x545/0x810
[ 68.774981][ C3] ? __pfx_neigh_timer_handler+0x10/0x10
[ 68.774999][ C3] ? __pfx___run_timers+0x10/0x10
[ 68.775003][ C3] ? clockevents_program_event+0xf6/0x300
[ 68.775021][ C3] ? do_raw_spin_lock+0x131/0x270
[ 68.775030][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 68.775037][ C3] ? lock_acquire+0x32/0xc0
[ 68.775041][ C3] ? run_timer_softirq+0xe6/0x1c0
[ 68.775059][ C3] run_timer_softirq+0xee/0x1c0
[ 68.775068][ C3] handle_softirqs+0x1f6/0x5c0
[ 68.775090][ C3] __irq_exit_rcu+0xc4/0x100
[ 68.775094][ C3] irq_exit_rcu+0xe/0x20
[ 68.775098][ C3] sysvec_apic_timer_interrupt+0x78/0x90
[ 68.775104][ C3]
[ 68.775106][ C3]
[ 68.775110][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 68.775116][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 68.775123][ C3] Code: 10 e8 81 74 88 fd 48 89 ef e8 c9 e4 88 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 75 7d 50 5b <74> 0e 5b 5d c3 cc cc cc cc e8 8f 03 ae fd eb dc 0f 1f 44 00 00 5b
[ 68.775127][ C3] RSP: 0018:ffffc90001107878 EFLAGS: 00000286
[ 68.775133][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff4f864c3
[ 68.775136][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa4b34761
[ 68.775139][ C3] RBP: ffff88800104f440 R08: 0000000000000001 R09: fffffbfff4f843e5
[ 68.775142][ C3] R10: ffffffffa7c21f2f R11: ffff88800dfe8040 R12: ffff88800569b5f8
[ 68.775145][ C3] R13: 0000000000000000 R14: ffffc900011078c8 R15: ffff88800569a4e8
[ 68.775167][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 68.775182][ C3] qlist_free_all+0x4c/0x120
[ 68.775196][ C3] kasan_quarantine_reduce+0x195/0x1e0
[ 68.775207][ C3] __kasan_slab_alloc+0x49/0x70
[ 68.775219][ C3] kmem_cache_alloc_noprof+0x10b/0x350
[ 68.775226][ C3] ? vma_merge_new_range+0x27a/0xc90
[ 68.775244][ C3] vm_area_alloc+0x20/0x1c0
[ 68.775252][ C3] __mmap_region+0x734/0x18e0
[ 68.775268][ C3] ? __pfx___mmap_region+0x10/0x10
[ 68.775273][ C3] ? mas_prev+0xb5/0xc0
[ 68.775291][ C3] ? mas_find+0x1f1/0x400
[ 68.775320][ C3] ? rcu_read_lock_any_held+0x43/0xb0
[ 68.775327][ C3] ? validate_chain+0x1fe/0xae0
[ 68.775407][ C3] ? mmap_region+0xe1/0x2e0
[ 68.775425][ C3] do_mmap+0x9c7/0xf20
[ 68.775446][ C3] ? __pfx_do_mmap+0x10/0x10
[ 68.775450][ C3] ? down_write_killable+0x128/0x240
[ 68.775459][ C3] ? __pfx_down_write_killable+0x10/0x10
[ 68.775468][ C3] ? __lock_release+0x103/0x460
[ 68.775482][ C3] vm_mmap_pgoff+0x152/0x2e0
[ 68.775503][ C3] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 68.775518][ C3] ? __fget_files+0x19a/0x300
[ 68.775539][ C3] ksys_mmap_pgoff+0x1b4/0x420
[ 68.775557][ C3] do_syscall_64+0xc1/0x1d0
[ 68.775571][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 68.775576][ C3] RIP: 0033:0x7fcf6cc01116
[ 68.775583][ C3] Code: 5d 41 5c c3 f3 0f 1e fa 41 f7 c1 ff 0f 00 00 75 2b 55 48 89 fd 53 89 cb 48 85 ff 74 37 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 62 5b 5d c3 0f 1f 80 00 00 00 00 c7 05 ae f0
[ 68.775586][ C3] RSP: 002b:00007fffdbf0e0d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 68.775591][ C3] RAX: ffffffffffffffda RBX: 0000000000000802 RCX: 00007fcf6cc01116
[ 68.775594][ C3] RDX: 0000000000000001 RSI: 0000000000207f90 RDI: 0000000000000000
[ 68.775597][ C3] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
[ 68.775600][ C3] R10: 0000000000000802 R11: 0000000000000246 R12: 0000000000000fff
[ 68.775602][ C3] R13: 00007fffdbf0e8a0 R14: 0000000000000000 R15: 00007fcf6cb19500
[ 68.775634][ C3]
WAIT TIMEOUT stderr
Ctrl-C stderr
Ctrl-C stderr