[ 14.010087][ T301] 8021q: 802.1Q VLAN Support v1.8
[ 17.421678][ T345] br1: port 1(vx100) entered blocking state
[ 17.422181][ T345] br1: port 1(vx100) entered disabled state
[ 17.422925][ T345] vx100: entered allmulticast mode
[ 17.425045][ T345] vx100: entered promiscuous mode
[ 17.426061][ T345] br1: port 1(vx100) entered blocking state
[ 17.426604][ T345] br1: port 1(vx100) entered forwarding state
[ 17.627034][ T347] br1: port 2(veth1) entered blocking state
[ 17.627501][ T347] br1: port 2(veth1) entered disabled state
[ 17.627932][ T347] veth1: entered allmulticast mode
[ 17.631707][ T347] veth1: entered promiscuous mode
[ 17.714042][ T45] br1: port 2(veth1) entered blocking state
[ 17.714567][ T45] br1: port 2(veth1) entered forwarding state
[ 17.907896][ T350] br1: port 3(veth2) entered blocking state
[ 17.908271][ T350] br1: port 3(veth2) entered disabled state
[ 17.908629][ T350] veth2: entered allmulticast mode
[ 17.910640][ T350] veth2: entered promiscuous mode
[ 17.995447][ T126] br1: port 3(veth2) entered blocking state
[ 17.995732][ T126] br1: port 3(veth2) entered forwarding state
[ 21.247385][ C3]
[ 21.247913][ C3] =============================
[ 21.248238][ C3] WARNING: suspicious RCU usage
[ 21.248578][ C3] 6.13.0-virtme #1 Not tainted
[ 21.248871][ C3] -----------------------------
[ 21.249190][ C3] ./include/net/net_namespace.h:404 suspicious rcu_dereference_check() usage!
[ 21.249768][ C3]
[ 21.249768][ C3] other info that might help us debug this:
[ 21.249768][ C3]
[ 21.250424][ C3]
[ 21.250424][ C3] rcu_scheduler_active = 2, debug_locks = 1
[ 21.250905][ C3] 2 locks held by ip/398:
[ 21.251151][ C3] #0: ffff8880052c0220 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0xdf/0x2e0
[ 21.251768][ C3] #1: ffffc90000290d60 ((&n->timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230
[ 21.252827][ C3]
[ 21.252827][ C3] stack backtrace:
[ 21.253227][ C3] CPU: 3 UID: 0 PID: 398 Comm: ip Not tainted 6.13.0-virtme #1
[ 21.253236][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.253239][ C3] Call Trace:
[ 21.253242][ C3]
[ 21.253246][ C3] dump_stack_lvl+0xb0/0xd0
[ 21.253260][ C3] lockdep_rcu_suspicious+0x1ea/0x280
[ 21.253277][ C3] icmp6_send+0x10ab/0x1bf0
[ 21.253312][ C3] ? __pfx_icmp6_send+0x10/0x10
[ 21.253328][ C3] ? __pfx_validate_chain+0x10/0x10
[ 21.253336][ C3] ? hlock_class+0x4e/0x130
[ 21.253341][ C3] ? mark_lock+0x38/0x3e0
[ 21.253362][ C3] ? __lock_acquire+0xb9a/0x1680
[ 21.253372][ C3] ? find_held_lock+0x2c/0x110
[ 21.253383][ C3] ? __lock_release+0x103/0x460
[ 21.253388][ C3] ? neigh_invalidate+0x1c7/0x540
[ 21.253397][ C3] ? __pfx___lock_release+0x10/0x10
[ 21.253404][ C3] ? lock_acquire.part.0+0xeb/0x330
[ 21.253425][ C3] ip6_link_failure+0x30/0x430
[ 21.253439][ C3] ndisc_error_report+0x96/0x170
[ 21.253452][ C3] neigh_invalidate+0x209/0x540
[ 21.253468][ C3] neigh_timer_handler+0x87a/0xdf0
[ 21.253487][ C3] ? __pfx_neigh_timer_handler+0x10/0x10
[ 21.253493][ C3] call_timer_fn+0x13b/0x230
[ 21.253500][ C3] ? call_timer_fn+0xe8/0x230
[ 21.253504][ C3] ? call_timer_fn+0xe8/0x230
[ 21.253512][ C3] ? __pfx_call_timer_fn+0x10/0x10
[ 21.253518][ C3] ? hlock_class+0x4e/0x130
[ 21.253531][ C3] ? mark_held_locks+0x9e/0xe0
[ 21.253552][ C3] __run_timers+0x545/0x810
[ 21.253559][ C3] ? __pfx_neigh_timer_handler+0x10/0x10
[ 21.253578][ C3] ? __pfx___run_timers+0x10/0x10
[ 21.253582][ C3] ? clockevents_program_event+0xf6/0x300
[ 21.253597][ C3] ? do_raw_spin_lock+0x131/0x270
[ 21.253608][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 21.253616][ C3] ? lock_acquire+0x32/0xc0
[ 21.253620][ C3] ? run_timer_softirq+0xe6/0x1c0
[ 21.253638][ C3] run_timer_softirq+0xee/0x1c0
[ 21.253647][ C3] handle_softirqs+0x1f6/0x5c0
[ 21.253670][ C3] __irq_exit_rcu+0xc4/0x100
[ 21.253676][ C3] irq_exit_rcu+0xe/0x20
[ 21.253680][ C3] sysvec_apic_timer_interrupt+0x78/0x90
[ 21.253688][ C3]
[ 21.253689][ C3]
[ 21.253694][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 21.253702][ C3] RIP: 0010:find_stack+0x31/0x140
[ 21.253711][ C3] Code: 41 89 d6 41 55 41 89 cd 41 54 55 48 89 fd 53 48 89 f3 65 ff 05 28 b2 88 65 e8 8b 2e 96 01 85 c0 0f 85 8a 00 00 00 4c 8b 65 00 <41> 83 e7 02 44 89 f2 4c 39 e5 75 0b eb 73 4d 8b 24 24 49 39 ec 74
[ 21.253716][ C3] RSP: 0018:ffffc90000897640 EFLAGS: 00000202
[ 21.253721][ C3] RAX: 0000000000000001 RBX: ffffc900008976d0 RCX: 0000000000000001
[ 21.253725][ C3] RDX: 0000000000000000 RSI: ffffffff9d15abe0 RDI: ffff88800d9b2d48
[ 21.253728][ C3] RBP: ffff88803509d100 R08: 0000000000000001 R09: fffffbfff3b72232
[ 21.253731][ C3] R10: ffffffff9db91197 R11: ffff88800d9b2300 R12: ffff888004d889d0
[ 21.253735][ C3] R13: 00000000e0419d10 R14: 000000000000000b R15: 0000000000000001
[ 21.253770][ C3] stack_depot_save_flags+0x14f/0x440
[ 21.253789][ C3] kasan_save_stack+0x34/0x50
[ 21.253797][ C3] ? kasan_save_stack+0x24/0x50
[ 21.253802][ C3] ? kasan_save_track+0x14/0x30
[ 21.253806][ C3] ? __kasan_slab_alloc+0x59/0x70
[ 21.253811][ C3] ? kmem_cache_alloc_noprof+0x10b/0x350
[ 21.253818][ C3] ? vm_area_alloc+0x20/0x1c0
[ 21.253824][ C3] ? __mmap_region+0x734/0x18e0
[ 21.253830][ C3] ? do_mmap+0x9c7/0xf20
[ 21.253835][ C3] ? vm_mmap_pgoff+0x152/0x2e0
[ 21.253842][ C3] ? ksys_mmap_pgoff+0x1b4/0x420
[ 21.253846][ C3] ? do_syscall_64+0xc1/0x1d0
[ 21.253854][ C3] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 21.253863][ C3] ? stack_depot_save_flags+0x14f/0x440
[ 21.253869][ C3] ? mark_held_locks+0x9e/0xe0
[ 21.253884][ C3] ? set_track_prepare+0x40/0x70
[ 21.253892][ C3] ? vm_area_alloc+0x20/0x1c0
[ 21.253896][ C3] ? __mmap_region+0x734/0x18e0
[ 21.253901][ C3] ? do_mmap+0x9c7/0xf20
[ 21.253904][ C3] ? vm_mmap_pgoff+0x152/0x2e0
[ 21.253908][ C3] ? ksys_mmap_pgoff+0x1b4/0x420
[ 21.253911][ C3] ? do_syscall_64+0xc1/0x1d0
[ 21.253916][ C3] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 21.253934][ C3] ? ___slab_alloc+0xb05/0xee0
[ 21.253940][ C3] ? __lock_release+0x103/0x460
[ 21.253944][ C3] ? vm_area_alloc+0x20/0x1c0
[ 21.253951][ C3] ? ___slab_alloc+0x21/0xee0
[ 21.253978][ C3] kasan_save_track+0x14/0x30
[ 21.253984][ C3] __kasan_slab_alloc+0x59/0x70
[ 21.253995][ C3] kmem_cache_alloc_noprof+0x10b/0x350
[ 21.254001][ C3] ? vma_merge_new_range+0x27a/0xc90
[ 21.254018][ C3] vm_area_alloc+0x20/0x1c0
[ 21.254025][ C3] __mmap_region+0x734/0x18e0
[ 21.254040][ C3] ? __pfx___mmap_region+0x10/0x10
[ 21.254045][ C3] ? mas_prev+0xb5/0xc0
[ 21.254065][ C3] ? mas_find+0x1f1/0x400
[ 21.254094][ C3] ? rcu_read_lock_any_held+0x43/0xb0
[ 21.254101][ C3] ? validate_chain+0x1fe/0xae0
[ 21.254186][ C3] ? mmap_region+0xe1/0x2e0
[ 21.254203][ C3] do_mmap+0x9c7/0xf20
[ 21.254223][ C3] ? __pfx_do_mmap+0x10/0x10
[ 21.254227][ C3] ? down_write_killable+0x128/0x240
[ 21.254237][ C3] ? __pfx_down_write_killable+0x10/0x10
[ 21.254246][ C3] ? __lock_release+0x103/0x460
[ 21.254261][ C3] vm_mmap_pgoff+0x152/0x2e0
[ 21.254281][ C3] ? __pfx_vm_mmap_pgoff+0x10/0x10
[ 21.254295][ C3] ? __fget_files+0x19a/0x300
[ 21.254317][ C3] ksys_mmap_pgoff+0x1b4/0x420
[ 21.254335][ C3] do_syscall_64+0xc1/0x1d0
[ 21.254346][ C3] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 21.254351][ C3] RIP: 0033:0x7fdeafcb1116
[ 21.254358][ 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
[ 21.254363][ C3] RSP: 002b:00007ffe23f6a318 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 21.254368][ C3] RAX: ffffffffffffffda RBX: 0000000000000802 RCX: 00007fdeafcb1116
[ 21.254371][ C3] RDX: 0000000000000001 RSI: 0000000000207f90 RDI: 0000000000000000
[ 21.254374][ C3] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
[ 21.254377][ C3] R10: 0000000000000802 R11: 0000000000000246 R12: 0000000000000fff
[ 21.254380][ C3] R13: 00007ffe23f6aae0 R14: 0000000000000000 R15: 00007fdeafbc9500
[ 21.254413][ C3]
[ 21.330293][ T398] br2: port 1(w1) entered blocking state
[ 21.330606][ T398] br2: port 1(w1) entered disabled state
[ 21.330890][ T398] w1: entered allmulticast mode
[ 21.332869][ T398] w1: entered promiscuous mode
[ 21.874472][ T405] br2: port 2(vx100) entered blocking state
[ 21.874826][ T405] br2: port 2(vx100) entered disabled state
[ 21.875153][ T405] vx100: entered allmulticast mode
[ 21.877275][ T405] vx100: entered promiscuous mode
[ 21.878884][ T405] br2: port 2(vx100) entered blocking state
[ 21.879175][ T405] br2: port 2(vx100) entered forwarding state
[ 22.676598][ T57] br2: port 1(w1) entered blocking state
[ 22.677244][ T57] br2: port 1(w1) entered forwarding state
[ 25.107294][ T446] br2: port 1(w1) entered blocking state
[ 25.107600][ T446] br2: port 1(w1) entered disabled state
[ 25.114781][ T446] w1: entered allmulticast mode
[ 25.116838][ T446] w1: entered promiscuous mode
[ 25.744446][ T453] br2: port 2(vx100) entered blocking state
[ 25.744806][ T453] br2: port 2(vx100) entered disabled state
[ 25.745104][ T453] vx100: entered allmulticast mode
[ 25.747077][ T453] vx100: entered promiscuous mode
[ 25.747702][ T453] br2: port 2(vx100) entered blocking state
[ 25.747974][ T453] br2: port 2(vx100) entered forwarding state
[ 26.452908][ T126] br2: port 1(w1) entered blocking state
[ 26.453228][ T126] br2: port 1(w1) entered forwarding state
[ 38.824092][ T11] vx100: left allmulticast mode
[ 38.824594][ T11] vx100: left promiscuous mode
[ 38.824957][ T11] br2: port 2(vx100) entered disabled state
[ 38.828585][ T11] w1: left allmulticast mode
[ 38.828808][ T11] w1: left promiscuous mode
[ 38.829127][ T11] br2: port 1(w1) entered disabled state
[ 39.311765][ T11] vx100: left allmulticast mode
[ 39.312030][ T11] vx100: left promiscuous mode
[ 39.312377][ T11] br2: port 2(vx100) entered disabled state
[ 39.315312][ T11] w1: left allmulticast mode
[ 39.315530][ T11] w1: left promiscuous mode
[ 39.315841][ T11] br2: port 1(w1) entered disabled state
[ 41.475890][ T575] br1: port 3(veth2) entered disabled state
[ 41.559931][ T576] veth2: left allmulticast mode
[ 41.560245][ T576] veth2: left promiscuous mode
[ 41.560642][ T576] br1: port 3(veth2) entered disabled state
[ 41.726649][ T578] br1: port 2(veth1) entered disabled state
[ 41.818162][ T579] veth1: left allmulticast mode
[ 41.819551][ T579] veth1: left promiscuous mode
[ 41.819924][ T579] br1: port 2(veth1) entered disabled state
[ 41.905529][ T580] vx100: left allmulticast mode
[ 41.905795][ T580] vx100: left promiscuous mode
[ 41.906227][ T580] br1: port 1(vx100) entered disabled state