[ 11.188125][ T277] ip (277) used greatest stack depth: 24464 bytes left [ 12.689361][ T302] lag1: Mode changed to "loadbalance" [ 13.081092][ T310] lag1: Port device veth0 added [ 13.150387][ T311] lag1: Port device veth6 added [ 14.350518][ T329] lag4: Mode changed to "loadbalance" [ 14.741528][ T336] lag4: Port device veth3 added [ 14.815016][ T337] lag4: Port device veth5 added [ 15.909497][ T354] lag2: Mode changed to "loadbalance" [ 16.263764][ T361] lag2: Port device veth1 added [ 16.270056][ T302] [ 16.270252][ T302] ============================= [ 16.270413][ T302] WARNING: suspicious RCU usage [ 16.270597][ T302] 6.14.0-rc6-virtme #1 Not tainted [ 16.270764][ T302] ----------------------------- [ 16.270918][ T302] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 16.271179][ T302] [ 16.271179][ T302] other info that might help us debug this: [ 16.271179][ T302] [ 16.271479][ T302] [ 16.271479][ T302] rcu_scheduler_active = 2, debug_locks = 1 [ 16.271721][ T302] 1 lock held by teamd/302: [ 16.271888][ T302] #0: ffffffffb375b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 16.272174][ T302] [ 16.272174][ T302] stack backtrace: [ 16.272365][ T302] CPU: 3 UID: 0 PID: 302 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 16.272369][ T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.272371][ T302] Call Trace: [ 16.272373][ T302] [ 16.272375][ T302] dump_stack_lvl+0xb0/0xd0 [ 16.272382][ T302] lockdep_rcu_suspicious+0x1ea/0x280 [ 16.272392][ T302] dev_hard_start_xmit+0x2fc/0x3f0 [ 16.272403][ T302] __dev_queue_xmit+0xfaf/0x18d0 [ 16.272417][ T302] ? __pfx___dev_queue_xmit+0x10/0x10 [ 16.272421][ T302] ? packet_parse_headers+0x231/0x9c0 [ 16.272429][ T302] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 16.272435][ T302] ? __pfx_packet_parse_headers+0x10/0x10 [ 16.272440][ T302] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 16.272446][ T302] ? packet_cached_dev_get+0xd5/0x210 [ 16.272457][ T302] packet_snd+0xd0c/0x19d0 [ 16.272471][ T302] ? __pfx_packet_snd+0x10/0x10 [ 16.272477][ T302] ? build_sched_domains+0x14d0/0x1690 [ 16.272485][ T302] ? __lock_release+0x103/0x460 [ 16.272489][ T302] ? __might_fault+0x11b/0x170 [ 16.272495][ T302] ? __pfx___lock_release+0x10/0x10 [ 16.272504][ T302] __sys_sendto+0x3c3/0x450 [ 16.272510][ T302] ? __pfx___sys_sendto+0x10/0x10 [ 16.272512][ T302] ? __might_fault+0x11b/0x170 [ 16.272526][ T302] ? __sys_getsockname+0x150/0x1f0 [ 16.272531][ T302] ? __pfx___sys_getsockname+0x10/0x10 [ 16.272536][ T302] ? __pfx___up_read+0x10/0x10 [ 16.272544][ T302] ? do_user_addr_fault+0x972/0xe30 [ 16.272553][ T302] ? do_user_addr_fault+0x97c/0xe30 [ 16.272560][ T302] __x64_sys_sendto+0xe0/0x1c0 [ 16.272564][ T302] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 16.272569][ T302] do_syscall_64+0xc1/0x1d0 [ 16.272576][ T302] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 16.272581][ T302] RIP: 0033:0x7f9382ca68f0 [ 16.272585][ T302] Code: ff ff 64 89 02 eb bd 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20 [ 16.272588][ T302] RSP: 002b:00007fff04345498 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 16.272591][ T302] RAX: ffffffffffffffda RBX: 000000001b722740 RCX: 00007f9382ca68f0 [ 16.272593][ T302] RDX: 000000000000007c RSI: 00007fff04345510 RDI: 0000000000000006 [ 16.272595][ T302] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 16.272597][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 16.272599][ T302] R13: 00007fff04345510 R14: 0000000000000006 R15: 000000001b722c90 [ 16.272615][ T302] [ 16.352709][ T362] lag2: Port device veth7 added [ 16.865396][ T369] br1: port 1(lag2) entered blocking state [ 16.865841][ T369] br1: port 1(lag2) entered disabled state [ 16.866243][ T369] lag2: entered allmulticast mode [ 16.866423][ T369] veth1: entered allmulticast mode [ 16.866868][ T369] veth7: entered allmulticast mode [ 16.870380][ T369] veth1: entered promiscuous mode [ 16.870736][ T369] veth7: entered promiscuous mode [ 17.117006][ T373] br1: port 1(lag2) entered blocking state [ 17.117431][ T373] br1: port 1(lag2) entered forwarding state [ 17.422922][ T379] lag3: Mode changed to "loadbalance" [ 17.788021][ T386] lag3: Port device veth2 added [ 17.890260][ T387] lag3: Port device veth4 added [ 27.191530][ T449] ip (449) used greatest stack depth: 24112 bytes left [ 27.271289][ T450] veth7: left allmulticast mode [ 27.273709][ T450] lag2: Port device veth7 removed [ 27.346278][ T451] veth7: left promiscuous mode [ 40.496326][ T501] veth7: entered allmulticast mode [ 40.496707][ T501] veth7: entered promiscuous mode [ 40.497807][ T501] lag2: Port device veth7 added [ 40.816992][ T512] veth1: left allmulticast mode [ 40.819860][ T512] lag2: Port device veth1 removed [ 40.896744][ T513] veth1: left promiscuous mode [ 53.936889][ T41] br1: port 1(lag2) entered disabled state [ 54.003251][ T563] veth7: left allmulticast mode [ 54.005328][ T563] lag2: Port device veth7 removed [ 54.090110][ T564] veth7: left promiscuous mode [ 54.361618][ T574] veth1: entered allmulticast mode [ 54.361851][ T574] veth1: entered promiscuous mode [ 54.363077][ T574] lag2: Port device veth1 added [ 54.387173][ T302] br1: port 1(lag2) entered blocking state [ 54.387535][ T302] br1: port 1(lag2) entered forwarding state [ 54.678320][ T585] veth7: entered allmulticast mode [ 54.678572][ T585] veth7: entered promiscuous mode [ 54.679735][ T585] lag2: Port device veth7 added [ 67.735667][ T636] lag2: left allmulticast mode [ 67.735899][ T636] veth1: left allmulticast mode [ 67.736088][ T636] veth7: left allmulticast mode [ 67.736347][ T636] veth1: left promiscuous mode [ 67.736585][ T636] veth7: left promiscuous mode [ 67.736971][ T636] br1: port 1(lag2) entered disabled state [ 69.881657][ T638] br1: port 1(lag2) entered blocking state [ 69.881945][ T638] br1: port 1(lag2) entered disabled state [ 69.882303][ T638] lag2: entered allmulticast mode [ 69.882502][ T638] veth1: entered allmulticast mode [ 69.882711][ T638] veth7: entered allmulticast mode [ 69.885033][ T638] veth1: entered promiscuous mode [ 69.885265][ T638] veth7: entered promiscuous mode [ 69.886119][ T638] br1: port 1(lag2) entered blocking state [ 69.886362][ T638] br1: port 1(lag2) entered forwarding state [ 83.011721][ T688] lag3: Port device veth2 removed [ 96.201285][ T739] lag3: Port device veth2 added [ 96.511861][ T750] lag3: Port device veth4 removed [ 109.745248][ T801] lag3: Port device veth2 removed [ 110.049112][ T812] lag3: Port device veth4 added [ 110.356432][ T823] lag3: Port device veth2 added [ 123.492941][ T873] br1: port 2(lag3) entered blocking state [ 123.493365][ T873] br1: port 2(lag3) entered disabled state [ 123.493815][ T873] lag3: entered allmulticast mode [ 123.494096][ T873] veth4: entered allmulticast mode [ 123.494374][ T873] veth2: entered allmulticast mode [ 123.497684][ T873] lag3: entered promiscuous mode [ 123.498008][ T873] veth4: entered promiscuous mode [ 123.498937][ T873] veth2: entered promiscuous mode [ 123.500138][ T873] lag2: entered promiscuous mode [ 123.501925][ T873] br1: port 2(lag3) entered blocking state [ 123.502187][ T873] br1: port 2(lag3) entered forwarding state [ 125.639944][ T875] lag3: left allmulticast mode [ 125.640201][ T875] veth4: left allmulticast mode [ 125.640400][ T875] veth2: left allmulticast mode [ 125.640622][ T875] lag3: left promiscuous mode [ 125.640869][ T875] veth4: left promiscuous mode [ 125.641521][ T875] veth2: left promiscuous mode [ 125.642133][ T875] br1: port 2(lag3) entered disabled state [ 125.643217][ T875] lag2: left promiscuous mode [ 125.655365][ T875] ip (875) used greatest stack depth: 23640 bytes left [ 139.098962][ T928] lag3: Port device veth4 removed [ 139.173274][ T929] lag3: Port device veth2 removed [ 139.996630][ T46] br1: port 1(lag2) entered disabled state [ 140.159882][ T944] lag2: left allmulticast mode [ 140.160211][ T944] veth1: left allmulticast mode [ 140.160532][ T944] veth7: left allmulticast mode [ 140.160876][ T944] br1: port 1(lag2) entered disabled state [ 140.369259][ T946] lag2: Port device veth7 removed [ 140.438062][ T947] lag2: Port device veth1 removed [ 141.886872][ T962] lag4: Port device veth5 removed [ 141.959792][ T963] lag4: Port device veth3 removed [ 143.410598][ T976] lag1: Port device veth6 removed [ 143.478953][ T977] lag1: Port device veth0 removed