[ 15.849815][ T325] br1: port 1(vx1) entered blocking state
[ 15.850253][ T325] br1: port 1(vx1) entered disabled state
[ 15.850600][ T325] vx1: entered allmulticast mode
[ 15.852641][ T325] vx1: entered promiscuous mode
[ 15.854244][ T325] br1: port 1(vx1) entered blocking state
[ 15.854560][ T325] br1: port 1(vx1) entered forwarding state
[ 15.941250][ T326] br1: port 2(veth1) entered blocking state
[ 15.941551][ T326] br1: port 2(veth1) entered disabled state
[ 15.941819][ T326] veth1: entered allmulticast mode
[ 15.943691][ T326] veth1: entered promiscuous mode
[ 16.022688][ T45] br1: port 2(veth1) entered blocking state
[ 16.023116][ T45] br1: port 2(veth1) entered forwarding state
[ 16.107928][ T328] br1: port 3(veth2) entered blocking state
[ 16.108298][ T328] br1: port 3(veth2) entered disabled state
[ 16.108606][ T328] veth2: entered allmulticast mode
[ 16.110594][ T328] veth2: entered promiscuous mode
[ 16.187963][ T39] br1: port 3(veth2) entered blocking state
[ 16.188283][ T39] br1: port 3(veth2) entered forwarding state
[ 19.328680][ T374] br2: port 1(w1) entered blocking state
[ 19.328927][ T374] br2: port 1(w1) entered disabled state
[ 19.329178][ T374] w1: entered allmulticast mode
[ 19.331072][ T374] w1: entered promiscuous mode
[ 19.803512][ T380] br2: port 2(vx2) entered blocking state
[ 19.803872][ T380] br2: port 2(vx2) entered disabled state
[ 19.804223][ T380] vx2: entered allmulticast mode
[ 19.806584][ T380] vx2: entered promiscuous mode
[ 19.807472][ T380] br2: port 2(vx2) entered blocking state
[ 19.807748][ T380] br2: port 2(vx2) entered forwarding state
[ 20.405492][ T45] br2: port 1(w1) entered blocking state
[ 20.405960][ T45] br2: port 1(w1) entered forwarding state
[ 20.932186][ C2]
[ 20.932645][ C2] =============================
[ 20.932871][ C2] WARNING: suspicious RCU usage
[ 20.933105][ C2] 6.13.0-virtme #1 Not tainted
[ 20.933349][ C2] -----------------------------
[ 20.933560][ C2] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 20.933916][ C2]
[ 20.933916][ C2] other info that might help us debug this:
[ 20.933916][ C2]
[ 20.934318][ C2]
[ 20.934318][ C2] rcu_scheduler_active = 2, debug_locks = 1
[ 20.934629][ C2] 3 locks held by ip/393:
[ 20.934804][ C2] #0: ffff88800ba9b2e0 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0xdf/0x2e0
[ 20.935194][ C2] #1: ffffffffb5742e30 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x88/0x1e0
[ 20.935606][ C2] #2: ffffc90000238ae8 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 20.935959][ C2]
[ 20.935959][ C2] stack backtrace:
[ 20.936218][ C2] CPU: 2 UID: 0 PID: 393 Comm: ip Not tainted 6.13.0-virtme #1
[ 20.936223][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.936225][ C2] Call Trace:
[ 20.936227][ C2]
[ 20.936230][ C2] dump_stack_lvl+0xb0/0xd0
[ 20.936239][ C2] lockdep_rcu_suspicious+0x1ea/0x280
[ 20.936249][ C2] __icmp_send+0xb0d/0x1580
[ 20.936260][ C2] ? __lock_acquire+0xb9a/0x1680
[ 20.936267][ C2] ? __pfx___icmp_send+0x10/0x10
[ 20.936277][ C2] ? trace_pelt_cfs_tp+0x106/0x180
[ 20.936287][ C2] ? rcu_read_lock_any_held+0x43/0xb0
[ 20.936293][ C2] ? validate_chain+0x1fe/0xae0
[ 20.936305][ C2] ? __pfx_validate_chain+0x10/0x10
[ 20.936309][ C2] ? hlock_class+0x4e/0x130
[ 20.936312][ C2] ? mark_lock+0x38/0x3e0
[ 20.936315][ C2] ? __pfx___lock_release+0x10/0x10
[ 20.936324][ C2] ? __lock_acquire+0xb9a/0x1680
[ 20.936333][ C2] ipv4_send_dest_unreach+0x3b4/0x800
[ 20.936339][ C2] ? neigh_invalidate+0x1c7/0x540
[ 20.936345][ C2] ? __pfx_ipv4_send_dest_unreach+0x10/0x10
[ 20.936358][ C2] ipv4_link_failure+0x1b/0x190
[ 20.936363][ C2] arp_error_report+0x96/0x170
[ 20.936370][ C2] neigh_invalidate+0x209/0x540
[ 20.936379][ C2] neigh_timer_handler+0x87a/0xdf0
[ 20.936389][ C2] ? __pfx_neigh_timer_handler+0x10/0x10
[ 20.936392][ C2] call_timer_fn+0x13b/0x230
[ 20.936395][ C2] ? call_timer_fn+0xe8/0x230
[ 20.936398][ C2] ? call_timer_fn+0xe8/0x230
[ 20.936402][ C2] ? __pfx_call_timer_fn+0x10/0x10
[ 20.936406][ C2] ? hlock_class+0x4e/0x130
[ 20.936413][ C2] ? mark_held_locks+0x9e/0xe0
[ 20.936425][ C2] __run_timers+0x545/0x810
[ 20.936428][ C2] ? __pfx_neigh_timer_handler+0x10/0x10
[ 20.936439][ C2] ? __pfx___run_timers+0x10/0x10
[ 20.936442][ C2] ? __lock_release+0x103/0x460
[ 20.936450][ C2] ? do_raw_spin_lock+0x131/0x270
[ 20.936456][ C2] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 20.936461][ C2] ? lock_acquire+0x32/0xc0
[ 20.936463][ C2] ? timer_expire_remote+0x96/0xf0
[ 20.936474][ C2] timer_expire_remote+0x9e/0xf0
[ 20.936478][ C2] tmigr_handle_remote_cpu+0x278/0x440
[ 20.936486][ C2] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10
[ 20.936489][ C2] ? __pfx___lock_release+0x10/0x10
[ 20.936494][ C2] ? hlock_class+0x4e/0x130
[ 20.936497][ C2] ? mark_lock+0x38/0x3e0
[ 20.936503][ C2] ? mark_held_locks+0x9e/0xe0
[ 20.936514][ C2] tmigr_handle_remote_up+0x1a6/0x270
[ 20.936520][ C2] ? __pfx_tmigr_handle_remote_up+0x10/0x10
[ 20.936525][ C2] __walk_groups.isra.0+0x44/0x160
[ 20.936536][ C2] tmigr_handle_remote+0x20b/0x300
[ 20.936540][ C2] ? __pfx_tmigr_handle_remote+0x10/0x10
[ 20.936545][ C2] ? hlock_class+0x4e/0x130
[ 20.936552][ C2] ? mark_held_locks+0x9e/0xe0
[ 20.936562][ C2] handle_softirqs+0x1f6/0x5c0
[ 20.936576][ C2] __irq_exit_rcu+0xc4/0x100
[ 20.936579][ C2] irq_exit_rcu+0xe/0x20
[ 20.936582][ C2] sysvec_apic_timer_interrupt+0x78/0x90
[ 20.936587][ C2]
[ 20.936588][ C2]
[ 20.936591][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 20.936596][ C2] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70
[ 20.936602][ 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 b0 4b <74> 0e 5b 5d c3 cc cc cc cc e8 8f 03 ae fd eb dc 0f 1f 44 00 00 5b
[ 20.936605][ C2] RSP: 0018:ffffc900006e78c8 EFLAGS: 00000286
[ 20.936608][ C2] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff6ec64c3
[ 20.936610][ C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb4534761
[ 20.936612][ C2] RBP: ffff88800192d080 R08: 0000000000000001 R09: fffffbfff6ec43e5
[ 20.936615][ C2] R10: ffffffffb7621f2f R11: ffff8880101f8040 R12: ffff88800c48ed48
[ 20.936616][ C2] R13: 0000000000000000 R14: ffffc900006e7918 R15: ffff88800c4bcda8
[ 20.936628][ C2] ? _raw_spin_unlock_irqrestore+0x51/0x70
[ 20.936636][ C2] qlist_free_all+0x4c/0x120
[ 20.936643][ C2] kasan_quarantine_reduce+0x195/0x1e0
[ 20.936650][ C2] __kasan_slab_alloc+0x49/0x70
[ 20.936658][ C2] kmem_cache_alloc_noprof+0x10b/0x350
[ 20.936665][ C2] ? vma_merge_new_range+0x8e9/0xc90
[ 20.936675][ C2] vm_area_alloc+0x20/0x1c0
[ 20.936680][ C2] __mmap_region+0x734/0x18e0
[ 20.936689][ C2] ? __pfx___mmap_region+0x10/0x10
[ 20.936692][ C2] ? find_held_lock+0x2c/0x110
[ 20.936701][ C2] ? __pfx___lock_release+0x10/0x10
[ 20.936716][ C2] ? rcu_read_lock_any_held+0x43/0xb0
[ 20.936719][ C2] ? validate_chain+0x1fe/0xae0
[ 20.936762][ C2] ? mmap_region+0xe1/0x2e0
[ 20.936772][ C2] do_mmap+0x9c7/0xf20
[ 20.936783][ C2] ? __pfx_do_mmap+0x10/0x10
[ 20.936786][ C2] ? down_write_killable+0x128/0x240
[ 20.936791][ C2] ? __pfx_down_write_killable+0x10/0x10
[ 20.936796][ C2] ? __pfx___lock_release+0x10/0x10
[ 20.936804][ C2] vm_mmap_pgoff+0x152/0x2e0
[ 20.936817][ C2] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 20.936823][ C2] ? do_user_addr_fault+0x374/0xe30
[ 20.936838][ C2] do_syscall_64+0xc1/0x1d0
[ 20.936845][ C2] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 20.936848][ C2] RIP: 0033:0x7f8a26781116
[ 20.936853][ C2] 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
[ 20.936856][ C2] RSP: 002b:00007ffe62838778 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[ 20.936859][ C2] RAX: ffffffffffffffda RBX: 0000000000000032 RCX: 00007f8a26781116
[ 20.936861][ C2] RDX: 0000000000000003 RSI: 000000000000cf90 RDI: 00007f8a26682000
[ 20.936863][ C2] RBP: 00007f8a26682000 R08: 00000000ffffffff R09: 0000000000000000
[ 20.936864][ C2] R10: 0000000000000032 R11: 0000000000000206 R12: 00007ffe62838820
[ 20.936866][ C2] R13: 00007ffe62838f40 R14: 00007f8a26682000 R15: 00007f8a26699500
[ 20.936883][ C2]
[ 22.082938][ T411] br2: port 1(w1) entered blocking state
[ 22.083257][ T411] br2: port 1(w1) entered disabled state
[ 22.083532][ T411] w1: entered allmulticast mode
[ 22.085946][ T411] w1: entered promiscuous mode
[ 22.575152][ T417] br2: port 2(vx2) entered blocking state
[ 22.575443][ T417] br2: port 2(vx2) entered disabled state
[ 22.575688][ T417] vx2: entered allmulticast mode
[ 22.577590][ T417] vx2: entered promiscuous mode
[ 22.578477][ T417] br2: port 2(vx2) entered blocking state
[ 22.578773][ T417] br2: port 2(vx2) entered forwarding state
[ 23.195501][ T45] br2: port 1(w1) entered blocking state
[ 23.195829][ T45] br2: port 1(w1) entered forwarding state
[ 34.931349][ T65] vx2: left allmulticast mode
[ 34.931901][ T65] vx2: left promiscuous mode
[ 34.932528][ T65] br2: port 2(vx2) entered disabled state
[ 34.938465][ T65] w1: left allmulticast mode
[ 34.938802][ T65] w1: left promiscuous mode
[ 34.939461][ T65] br2: port 1(w1) entered disabled state
[ 35.256483][ T65] vx2: left allmulticast mode
[ 35.256728][ T65] vx2: left promiscuous mode
[ 35.257069][ T65] br2: port 2(vx2) entered disabled state
[ 35.259615][ T65] w1: left allmulticast mode
[ 35.259824][ T65] w1: left promiscuous mode
[ 35.260177][ T65] br2: port 1(w1) entered disabled state
[ 37.483308][ T535] vx1: left allmulticast mode
[ 37.483557][ T535] vx1: left promiscuous mode
[ 37.483887][ T535] br1: port 1(vx1) entered disabled state
[ 37.817082][ T538] br1: port 3(veth2) entered disabled state
[ 37.896886][ T539] veth2: left allmulticast mode
[ 37.897127][ T539] veth2: left promiscuous mode
[ 37.897834][ T539] br1: port 3(veth2) entered disabled state
[ 37.987609][ T540] br1: port 2(veth1) entered disabled state
[ 38.069456][ T541] veth1: left allmulticast mode
[ 38.069709][ T541] veth1: left promiscuous mode
[ 38.070064][ T541] br1: port 2(veth1) entered disabled state