[ 10.912221][ T254] ip (254) used greatest stack depth: 24224 bytes left [ 13.127524][ T300] lag1: Mode changed to "loadbalance" [ 13.625807][ T309] lag1: Port device veth0 added [ 13.724959][ T310] lag1: Port device veth6 added [ 14.701037][ T322] 8021q: 802.1Q VLAN Support v1.8 [ 14.701628][ T322] 8021q: adding VLAN 0 to HW filter on device lag1 [ 15.980679][ T341] lag4: Mode changed to "loadbalance" [ 16.075057][ T343] 8021q: adding VLAN 0 to HW filter on device lag4 [ 16.081733][ T343] ip (343) used greatest stack depth: 23776 bytes left [ 16.471971][ T349] lag4: Port device veth3 added [ 16.553382][ T350] lag4: Port device veth5 added [ 16.977203][ T356] 8021q: adding VLAN 0 to HW filter on device lag4 [ 18.624370][ T379] lag2: Mode changed to "loadbalance" [ 18.715301][ T381] 8021q: adding VLAN 0 to HW filter on device lag2 [ 19.121119][ T387] lag2: Port device veth1 added [ 19.132974][ T300] [ 19.133223][ T300] ============================= [ 19.133390][ T300] WARNING: suspicious RCU usage [ 19.133554][ T300] 6.14.0-rc6-virtme #1 Not tainted [ 19.133715][ T300] ----------------------------- [ 19.133873][ T300] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 19.134175][ T300] [ 19.134175][ T300] other info that might help us debug this: [ 19.134175][ T300] [ 19.134490][ T300] [ 19.134490][ T300] rcu_scheduler_active = 2, debug_locks = 1 [ 19.134735][ T300] 1 lock held by teamd/300: [ 19.134899][ T300] #0: ffffffffb595b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 19.135381][ T300] [ 19.135381][ T300] stack backtrace: [ 19.135597][ T300] CPU: 3 UID: 0 PID: 300 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 19.135601][ T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.135604][ T300] Call Trace: [ 19.135606][ T300] [ 19.135609][ T300] dump_stack_lvl+0xb0/0xd0 [ 19.135618][ T300] lockdep_rcu_suspicious+0x1ea/0x280 [ 19.135630][ T300] dev_hard_start_xmit+0x2fc/0x3f0 [ 19.135641][ T300] __dev_queue_xmit+0xfaf/0x18d0 [ 19.135655][ T300] ? __pfx___dev_queue_xmit+0x10/0x10 [ 19.135660][ T300] ? packet_parse_headers+0x231/0x9c0 [ 19.135669][ T300] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 19.135676][ T300] ? __pfx_packet_parse_headers+0x10/0x10 [ 19.135681][ T300] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 19.135688][ T300] ? packet_cached_dev_get+0xd5/0x210 [ 19.135697][ T300] packet_snd+0xd0c/0x19d0 [ 19.135712][ T300] ? __pfx_packet_snd+0x10/0x10 [ 19.135719][ T300] ? build_sched_domains+0x14d0/0x1690 [ 19.135727][ T300] ? __lock_release+0x103/0x460 [ 19.135731][ T300] ? __might_fault+0x11b/0x170 [ 19.135739][ T300] ? __pfx___lock_release+0x10/0x10 [ 19.135748][ T300] __sys_sendto+0x3c3/0x450 [ 19.135754][ T300] ? __pfx___sys_sendto+0x10/0x10 [ 19.135757][ T300] ? __might_fault+0x11b/0x170 [ 19.135771][ T300] ? __sys_getsockname+0x150/0x1f0 [ 19.135775][ T300] ? __pfx___sys_getsockname+0x10/0x10 [ 19.135781][ T300] ? __pfx___up_read+0x10/0x10 [ 19.135789][ T300] ? do_user_addr_fault+0x972/0xe30 [ 19.135799][ T300] ? do_user_addr_fault+0x97c/0xe30 [ 19.135806][ T300] __x64_sys_sendto+0xe0/0x1c0 [ 19.135811][ T300] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 19.135816][ T300] do_syscall_64+0xc1/0x1d0 [ 19.135823][ T300] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 19.135828][ T300] RIP: 0033:0x7f4210d0c8f0 [ 19.135833][ T300] 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 [ 19.135836][ T300] RSP: 002b:00007ffc371a3e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 19.135840][ T300] RAX: ffffffffffffffda RBX: 000000001c164740 RCX: 00007f4210d0c8f0 [ 19.135842][ T300] RDX: 000000000000007c RSI: 00007ffc371a3ec0 RDI: 0000000000000006 [ 19.135844][ T300] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 19.135845][ T300] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 19.135847][ T300] R13: 00007ffc371a3ec0 R14: 0000000000000006 R15: 000000001c164c90 [ 19.135864][ T300] [ 19.227916][ T388] lag2: Port device veth7 added [ 20.323731][ T403] br1: port 1(lag2.100) entered blocking state [ 20.324112][ T403] br1: port 1(lag2.100) entered disabled state [ 20.324569][ T403] lag2.100: entered allmulticast mode [ 20.324785][ T403] lag2: entered allmulticast mode [ 20.325006][ T403] veth1: entered allmulticast mode [ 20.325919][ T403] veth7: entered allmulticast mode [ 20.328682][ T403] lag2.100: entered promiscuous mode [ 20.328932][ T403] lag2: entered promiscuous mode [ 20.329154][ T403] veth1: entered promiscuous mode [ 20.329645][ T403] veth7: entered promiscuous mode [ 20.701093][ T410] br2: port 1(lag2.200) entered blocking state [ 20.701790][ T410] br2: port 1(lag2.200) entered disabled state [ 20.702151][ T410] lag2.200: entered allmulticast mode [ 20.705352][ T410] lag2.200: entered promiscuous mode [ 20.956910][ T413] br1: port 1(lag2.100) entered blocking state [ 20.957351][ T413] br1: port 1(lag2.100) entered forwarding state [ 21.036304][ T414] br2: port 1(lag2.200) entered blocking state [ 21.036616][ T414] br2: port 1(lag2.200) entered forwarding state [ 21.570780][ T422] lag3: Mode changed to "loadbalance" [ 21.663861][ T424] 8021q: adding VLAN 0 to HW filter on device lag3 [ 22.038694][ T431] lag3: Port device veth2 added [ 22.154285][ T432] lag3: Port device veth4 added [ 34.822273][ T514] veth7: left promiscuous mode [ 34.822918][ T514] veth7: left allmulticast mode [ 34.825522][ T514] lag2: Port device veth7 removed [ 50.575588][ T575] veth7: entered promiscuous mode [ 50.576649][ T575] veth7: entered allmulticast mode [ 50.577768][ T575] lag2: Port device veth7 added [ 50.955683][ T586] veth1: left promiscuous mode [ 50.956553][ T586] veth1: left allmulticast mode [ 50.959479][ T586] lag2: Port device veth1 removed [ 66.742676][ T38] br1: port 1(lag2.100) entered disabled state [ 66.745260][ T38] br2: port 1(lag2.200) entered disabled state [ 66.828212][ T647] veth7: left promiscuous mode [ 66.828804][ T647] veth7: left allmulticast mode [ 66.830600][ T647] lag2: Port device veth7 removed [ 67.187239][ T658] veth1: entered promiscuous mode [ 67.187832][ T658] veth1: entered allmulticast mode [ 67.189052][ T658] lag2: Port device veth1 added [ 67.222616][ T46] br1: port 1(lag2.100) entered blocking state [ 67.223174][ T46] br1: port 1(lag2.100) entered forwarding state [ 67.226154][ T46] br2: port 1(lag2.200) entered blocking state [ 67.226631][ T46] br2: port 1(lag2.200) entered forwarding state [ 67.567853][ T669] veth7: entered promiscuous mode [ 67.568338][ T669] veth7: entered allmulticast mode [ 67.569296][ T669] lag2: Port device veth7 added [ 83.240252][ T729] lag2.200: left allmulticast mode [ 83.240518][ T729] lag2.200: left promiscuous mode [ 83.241480][ T729] br2: port 1(lag2.200) entered disabled state [ 83.333285][ T730] lag2.100: left allmulticast mode [ 83.333583][ T730] lag2: left allmulticast mode [ 83.333840][ T730] veth1: left allmulticast mode [ 83.334186][ T730] veth7: left allmulticast mode [ 83.334432][ T730] lag2.100: left promiscuous mode [ 83.334655][ T730] lag2: left promiscuous mode [ 83.334883][ T730] veth1: left promiscuous mode [ 83.335691][ T730] veth7: left promiscuous mode [ 83.336606][ T730] br1: port 1(lag2.100) entered disabled state [ 83.354418][ T730] ip (730) used greatest stack depth: 23288 bytes left [ 85.526159][ T732] br1: port 1(lag2.100) entered blocking state [ 85.526467][ T732] br1: port 1(lag2.100) entered disabled state [ 85.526805][ T732] lag2.100: entered allmulticast mode [ 85.527011][ T732] lag2: entered allmulticast mode [ 85.527249][ T732] veth1: entered allmulticast mode [ 85.527527][ T732] veth7: entered allmulticast mode [ 85.530219][ T732] lag2.100: entered promiscuous mode [ 85.530433][ T732] lag2: entered promiscuous mode [ 85.530689][ T732] veth1: entered promiscuous mode [ 85.531377][ T732] veth7: entered promiscuous mode [ 85.532983][ T732] br1: port 1(lag2.100) entered blocking state [ 85.533259][ T732] br1: port 1(lag2.100) entered forwarding state [ 85.622426][ T733] br2: port 1(lag2.200) entered blocking state [ 85.622757][ T733] br2: port 1(lag2.200) entered disabled state [ 85.623047][ T733] lag2.200: entered allmulticast mode [ 85.634084][ T733] lag2.200: entered promiscuous mode [ 85.635405][ T733] br2: port 1(lag2.200) entered blocking state [ 85.635718][ T733] br2: port 1(lag2.200) entered forwarding state [ 101.274884][ T793] lag3: Port device veth2 removed [ 116.992016][ T854] lag3: Port device veth2 added [ 117.332796][ T865] lag3: Port device veth4 removed [ 133.014334][ T926] lag3: Port device veth2 removed [ 133.346137][ T937] lag3: Port device veth4 added [ 133.705118][ T948] lag3: Port device veth2 added [ 150.203196][ T1018] lag3: Port device veth4 removed [ 150.298407][ T1019] lag3: Port device veth2 removed [ 151.246153][ T1031] br2: port 1(lag2.200) entered disabled state [ 151.338360][ T1032] br1: port 1(lag2.100) entered disabled state [ 151.620381][ T1036] lag2.200: left allmulticast mode [ 151.620649][ T1036] lag2.200: left promiscuous mode [ 151.621251][ T1036] br2: port 1(lag2.200) entered disabled state [ 151.842744][ T1038] lag2.100: left allmulticast mode [ 151.843004][ T1038] lag2: left allmulticast mode [ 151.843228][ T1038] veth1: left allmulticast mode [ 151.843459][ T1038] veth7: left allmulticast mode [ 151.843671][ T1038] lag2.100: left promiscuous mode [ 151.843864][ T1038] lag2: left promiscuous mode [ 151.844052][ T1038] veth1: left promiscuous mode [ 151.844854][ T1038] veth7: left promiscuous mode [ 151.845621][ T1038] br1: port 1(lag2.100) entered disabled state [ 152.274706][ T1042] lag2: Port device veth7 removed [ 152.355973][ T1043] lag2: Port device veth1 removed [ 154.167312][ T1059] lag4: Port device veth5 removed [ 154.255734][ T1060] lag4: Port device veth3 removed [ 156.066916][ T1076] lag1: Port device veth6 removed [ 156.151693][ T1077] lag1: Port device veth0 removed