[ 54.072330][ T1192] gre: GRE over IPv4 demultiplexor driver
[ 55.239489][ T1215] ip_gre: GRE over IPv4 tunneling driver
[ 70.382526][ T1468] ping (1468) used greatest stack depth: 23696 bytes left
[ 80.853033][ C3]
[ 80.853353][ C3] =============================
[ 80.853559][ C3] WARNING: suspicious RCU usage
[ 80.853770][ C3] 6.13.0-virtme #1 Not tainted
[ 80.854197][ C3] -----------------------------
[ 80.854404][ C3] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 80.854751][ C3]
[ 80.854751][ C3] other info that might help us debug this:
[ 80.854751][ C3]
[ 80.855158][ C3]
[ 80.855158][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 80.855470][ C3] 4 locks held by ip/1650:
[ 80.855695][ C3] #0: ffff888009c2cb90 (mapping.invalidate_lock){.+.+}-{4:4}, at: page_cache_ra_unbounded+0x132/0x5e0
[ 80.856132][ C3] #1: ffff88800893a1c8 (&fc->bg_lock){+.+.}-{3:3}, at: fuse_request_queue_background+0x2eb/0x620
[ 80.856555][ C3] #2: ffff8880057585d8 (&fsvq->lock){+.+.}-{3:3}, at: virtio_fs_enqueue_req+0x4f9/0xfe0
[ 80.856916][ C3] #3: ffffc90000290d60 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 80.857278][ C3]
[ 80.857278][ C3] stack backtrace:
[ 80.857522][ C3] CPU: 3 UID: 0 PID: 1650 Comm: ip Not tainted 6.13.0-virtme #1
[ 80.857526][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 80.857528][ C3] Call Trace:
[ 80.857530][ C3]
[ 80.857533][ C3] dump_stack_lvl+0xb0/0xd0
[ 80.857541][ C3] lockdep_rcu_suspicious+0x1ea/0x280
[ 80.857551][ C3] __icmp_send+0xafd/0x1570
[ 80.857565][ C3] ? __lock_acquire+0xb9a/0x1680
[ 80.857570][ C3] ? __pfx___icmp_send+0x10/0x10
[ 80.857586][ C3] ? rcu_read_lock_any_held+0x43/0xb0
[ 80.857591][ C3] ? validate_chain+0x1fe/0xae0
[ 80.857603][ C3] ? __pfx_validate_chain+0x10/0x10
[ 80.857608][ C3] ? hlock_class+0x4e/0x130
[ 80.857611][ C3] ? mark_lock+0x38/0x3e0
[ 80.857638][ C3] ? __lock_acquire+0xb9a/0x1680
[ 80.857647][ C3] ipv4_send_dest_unreach+0x3b5/0x820
[ 80.857655][ C3] ? neigh_invalidate+0x1c7/0x540
[ 80.857660][ C3] ? __pfx_ipv4_send_dest_unreach+0x10/0x10
[ 80.857674][ C3] ipv4_link_failure+0x1b/0x190
[ 80.857681][ C3] arp_error_report+0x96/0x170
[ 80.857687][ C3] neigh_invalidate+0x209/0x540
[ 80.857697][ C3] neigh_timer_handler+0x87a/0xdf0
[ 80.857706][ C3] ? __pfx_neigh_timer_handler+0x10/0x10
[ 80.857710][ C3] call_timer_fn+0x13b/0x230
[ 80.857713][ C3] ? call_timer_fn+0xe8/0x230
[ 80.857716][ C3] ? call_timer_fn+0xe8/0x230
[ 80.857720][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 80.857724][ C3] ? hlock_class+0x4e/0x130
[ 80.857732][ C3] ? mark_held_locks+0x9e/0xe0
[ 80.857744][ C3] __run_timers+0x545/0x810
[ 80.857748][ C3] ? __pfx_neigh_timer_handler+0x10/0x10
[ 80.857759][ C3] ? __pfx___run_timers+0x10/0x10
[ 80.857761][ C3] ? clockevents_program_event+0xf6/0x300
[ 80.857772][ C3] ? do_raw_spin_lock+0x131/0x270
[ 80.857777][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 80.857780][ C3] ? lock_acquire+0x32/0xc0
[ 80.857783][ C3] ? run_timer_softirq+0xe6/0x1c0
[ 80.857794][ C3] run_timer_softirq+0xee/0x1c0
[ 80.857799][ C3] handle_softirqs+0x1f6/0x5c0
[ 80.857812][ C3] __irq_exit_rcu+0xc4/0x100
[ 80.857815][ C3] irq_exit_rcu+0xe/0x20
[ 80.857818][ C3] sysvec_apic_timer_interrupt+0x78/0x90
[ 80.857824][ C3]
[ 80.857825][ C3]
[ 80.857827][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 80.857832][ C3] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 80.857838][ C3] Code: 10 e8 01 f2 63 fd 48 89 ef e8 49 62 64 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 95 5f 2b 48 <74> 0e 5b 5d c3 cc cc cc cc e8 df e8 89 fd eb dc 0f 1f 44 00 00 5b
[ 80.857840][ C3] RSP: 0000:ffffc900013d7050 EFLAGS: 00000286
[ 80.857843][ C3] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff75e9d9c
[ 80.857846][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb7d86781
[ 80.857847][ C3] RBP: ffff888001040f40 R08: 0000000000000001 R09: fffffbfff75e69e8
[ 80.857849][ C3] R10: ffffffffbaf34f47 R11: ffff8880097cc5c0 R12: ffff888001040f40
[ 80.857851][ C3] R13: ffffea00002fee00 R14: ffff888001043240 R15: ffff88800bfbb800
[ 80.857863][ C3] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 80.857872][ C3] get_partial_node.part.0+0x1c2/0x3b0
[ 80.857883][ C3] ? virtqueue_add_split+0x90f/0x18d0
[ 80.857888][ C3] ___slab_alloc+0x4b8/0xee0
[ 80.857890][ C3] ? kasan_save_stack+0x24/0x50
[ 80.857894][ C3] ? kasan_save_track+0x14/0x30
[ 80.857896][ C3] ? virtqueue_add_split+0x90f/0x18d0
[ 80.857900][ C3] ? ___slab_alloc+0x11/0xee0
[ 80.857908][ C3] ? page_cache_ra_unbounded+0x2f3/0x5e0
[ 80.857910][ C3] ? filemap_fault+0x7ab/0x13f0
[ 80.857914][ C3] ? __do_fault+0xed/0x3a0
[ 80.857918][ C3] ? do_pte_missing+0x4af/0xb70
[ 80.857921][ C3] ? handle_pte_fault+0x3fe/0x700
[ 80.857924][ C3] ? __handle_mm_fault+0x403/0x5e0
[ 80.857931][ C3] ? virtqueue_add_split+0x90f/0x18d0
[ 80.857935][ C3] ? __kmalloc_noprof+0x267/0x490
[ 80.857938][ C3] __kmalloc_noprof+0x267/0x490
[ 80.857948][ C3] virtqueue_add_split+0x90f/0x18d0
[ 80.857952][ C3] ? usage_skip+0x140/0x190
[ 80.857966][ C3] ? __pfx_virtqueue_add_split+0x10/0x10
[ 80.857973][ C3] ? kasan_save_track+0x14/0x30
[ 80.857976][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 80.857987][ C3] virtqueue_add_sgs+0x11c/0x150
[ 80.857999][ C3] virtio_fs_enqueue_req+0x58d/0xfe0
[ 80.858013][ C3] ? __pfx_virtio_fs_enqueue_req+0x10/0x10
[ 80.858026][ C3] ? find_held_lock+0x2c/0x110
[ 80.858033][ C3] ? __lock_release+0x103/0x460
[ 80.858036][ C3] ? fuse_get_unique+0x54/0x70
[ 80.858041][ C3] ? __pfx___lock_release+0x10/0x10
[ 80.858044][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 80.858050][ C3] ? do_raw_spin_lock+0x131/0x270
[ 80.858055][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 80.858060][ C3] ? fuse_get_unique+0x54/0x70
[ 80.858065][ C3] ? do_raw_spin_unlock+0x58/0x220
[ 80.858074][ C3] virtio_fs_send_req+0x13a/0x710
[ 80.858077][ C3] ? fuse_send_one+0xe1/0x180
[ 80.858084][ C3] flush_bg_queue+0x160/0x3d0
[ 80.858096][ C3] fuse_request_queue_background+0x476/0x620
[ 80.858105][ C3] fuse_simple_background+0x10a/0x180
[ 80.858111][ C3] fuse_send_readpages+0x593/0x940
[ 80.858122][ C3] fuse_readahead+0x792/0xab0
[ 80.858139][ C3] ? __pfx_fuse_readahead+0x10/0x10
[ 80.858146][ C3] ? __lock_release+0x103/0x460
[ 80.858149][ C3] ? __folio_batch_add_and_move+0x35b/0x880
[ 80.858154][ C3] ? __pfx___lock_release+0x10/0x10
[ 80.858157][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 80.858169][ C3] read_pages+0x185/0xaa0
[ 80.858172][ C3] ? __folio_batch_add_and_move+0x35b/0x880
[ 80.858183][ C3] ? __pfx_read_pages+0x10/0x10
[ 80.858204][ C3] page_cache_ra_unbounded+0x2f3/0x5e0
[ 80.858218][ C3] filemap_fault+0x7ab/0x13f0
[ 80.858225][ C3] ? __lock_release+0x103/0x460
[ 80.858228][ C3] ? do_fault_around+0x2c6/0x4c0
[ 80.858232][ C3] ? __pfx___lock_release+0x10/0x10
[ 80.858237][ C3] ? __pfx_filemap_fault+0x10/0x10
[ 80.858248][ C3] ? do_fault_around+0x2c6/0x4c0
[ 80.858251][ C3] ? __pfx_filemap_map_pages+0x10/0x10
[ 80.858260][ C3] __do_fault+0xed/0x3a0
[ 80.858266][ C3] do_pte_missing+0x4af/0xb70
[ 80.858269][ C3] ? handle_pte_fault+0x3c9/0x700
[ 80.858277][ C3] handle_pte_fault+0x3fe/0x700
[ 80.858284][ C3] ? __pfx_handle_pte_fault+0x10/0x10
[ 80.858298][ C3] __handle_mm_fault+0x403/0x5e0
[ 80.858303][ C3] ? __pfx___handle_mm_fault+0x10/0x10
[ 80.858320][ C3] ? __pfx___lock_release+0x10/0x10
[ 80.858325][ C3] ? __pfx_lock_vma_under_rcu+0x10/0x10
[ 80.858333][ C3] handle_mm_fault+0x1f1/0x410
[ 80.858338][ C3] ? __pfx_handle_mm_fault+0x10/0x10
[ 80.858344][ C3] ? __pfx_slab_free_after_rcu_debug+0x10/0x10
[ 80.858347][ C3] ? trace_rcu_segcb_stats+0x36/0x1e0
[ 80.858356][ C3] do_user_addr_fault+0x56f/0xe30
[ 80.858370][ C3] exc_page_fault+0x5e/0xd0
[ 80.858376][ C3] asm_exc_page_fault+0x26/0x30
[ 80.858379][ C3] RIP: 0033:0x7f98580f4248
[ 80.858383][ C3] Code: ff ff 66 0f 6f 0c 0e 66 0f 73 d8 0e 66 0f 73 db 0e e9 3c 01 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 66 0f ef c0 66 0f 6f 17 <66> 0f 6f 0e 66 0f 74 c1 66 0f 73 fa 01 66 0f 74 d1 66 0f f8 d0 66
[ 80.858385][ C3] RSP: 002b:00007ffe2cac0ba8 EFLAGS: 00010212
[ 80.858387][ C3] RAX: 000000000000000b RBX: 00007f9857d8080c RCX: 000000000000000c
[ 80.858389][ C3] RDX: 000000000000ffff RSI: 00007f9857d80800 RDI: 00007f98580588b0
[ 80.858390][ C3] RBP: 00007f98580588bb R08: 0000000000000000 R09: fffffffffffdaea8
[ 80.858392][ C3] R10: 00007f98580f4240 R11: 0000000000000246 R12: 0000000000000000
[ 80.858394][ C3] R13: 00007f98580e7e40 R14: 00007f9858125000 R15: 00007f985802fa30
[ 80.858411][ C3]
[ 90.813557][ T1787] ip6_gre: GRE over IPv6 tunneling driver
[ 100.309221][ T54] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 105.148453][ T2040] ping (2040) used greatest stack depth: 23632 bytes left
[ 105.492171][ T62] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 114.452101][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 118.164108][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 121.364127][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 125.076090][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured!