[ 187.230083][ T731] lag1: Mode changed to "loadbalance" [ 187.333847][ T732] 8021q: adding VLAN 0 to HW filter on device lag1 [ 187.618219][ T743] lag1: Port device veth0 added [ 187.726711][ T749] lag1: Port device veth6 added [ 188.175068][ T755] 8021q: adding VLAN 0 to HW filter on device lag1 [ 188.906808][ T766] lag4: Mode changed to "loadbalance" [ 189.005491][ T767] 8021q: adding VLAN 0 to HW filter on device lag4 [ 189.318444][ T773] lag4: Port device veth3 added [ 189.419027][ T774] lag4: Port device veth5 added [ 189.851851][ T780] 8021q: adding VLAN 0 to HW filter on device lag4 [ 190.590490][ T791] lag2: Mode changed to "loadbalance" [ 190.694282][ T792] 8021q: adding VLAN 0 to HW filter on device lag2 [ 191.000051][ T798] lag2: Port device veth1 added [ 191.007307][ T731] [ 191.007522][ T731] ============================= [ 191.007728][ T731] WARNING: suspicious RCU usage [ 191.007913][ T731] 6.14.0-rc6-virtme #1 Not tainted [ 191.008101][ T731] ----------------------------- [ 191.008291][ T731] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 191.008593][ T731] [ 191.008593][ T731] other info that might help us debug this: [ 191.008593][ T731] [ 191.008943][ T731] [ 191.008943][ T731] rcu_scheduler_active = 2, debug_locks = 1 [ 191.009214][ T731] 1 lock held by teamd/731: [ 191.009400][ T731] #0: ffffffff9855b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 191.009762][ T731] [ 191.009762][ T731] stack backtrace: [ 191.010007][ T731] CPU: 2 UID: 0 PID: 731 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 191.010011][ T731] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 191.010013][ T731] Call Trace: [ 191.010015][ T731] [ 191.010017][ T731] dump_stack_lvl+0xb0/0xd0 [ 191.010025][ T731] lockdep_rcu_suspicious+0x1ea/0x280 [ 191.010036][ T731] dev_hard_start_xmit+0x2fc/0x3f0 [ 191.010047][ T731] __dev_queue_xmit+0xfaf/0x18d0 [ 191.010061][ T731] ? __pfx___dev_queue_xmit+0x10/0x10 [ 191.010066][ T731] ? packet_parse_headers+0x231/0x9c0 [ 191.010074][ T731] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 191.010080][ T731] ? __pfx_packet_parse_headers+0x10/0x10 [ 191.010084][ T731] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 191.010090][ T731] ? packet_cached_dev_get+0xd5/0x210 [ 191.010099][ T731] packet_snd+0xd0c/0x19d0 [ 191.010114][ T731] ? __pfx_packet_snd+0x10/0x10 [ 191.010121][ T731] ? build_sched_domains+0x14d0/0x1690 [ 191.010128][ T731] ? __lock_release+0x103/0x460 [ 191.010132][ T731] ? __might_fault+0x11b/0x170 [ 191.010138][ T731] ? __pfx___lock_release+0x10/0x10 [ 191.010147][ T731] __sys_sendto+0x3c3/0x450 [ 191.010153][ T731] ? __pfx___sys_sendto+0x10/0x10 [ 191.010155][ T731] ? __might_fault+0x11b/0x170 [ 191.010170][ T731] ? __sys_getsockname+0x150/0x1f0 [ 191.010175][ T731] ? __pfx___sys_getsockname+0x10/0x10 [ 191.010179][ T731] ? __pfx___up_read+0x10/0x10 [ 191.010187][ T731] ? do_user_addr_fault+0x972/0xe30 [ 191.010198][ T731] ? do_user_addr_fault+0x97c/0xe30 [ 191.010205][ T731] __x64_sys_sendto+0xe0/0x1c0 [ 191.010208][ T731] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 191.010214][ T731] do_syscall_64+0xc1/0x1d0 [ 191.010222][ T731] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.010226][ T731] RIP: 0033:0x7fab1467f8f0 [ 191.010231][ T731] 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 [ 191.010234][ T731] RSP: 002b:00007fff059e4c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 191.010238][ T731] RAX: ffffffffffffffda RBX: 000000003a520840 RCX: 00007fab1467f8f0 [ 191.010240][ T731] RDX: 000000000000007c RSI: 00007fff059e4cf0 RDI: 0000000000000006 [ 191.010242][ T731] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 191.010244][ T731] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 191.010246][ T731] R13: 00007fff059e4cf0 R14: 0000000000000006 R15: 000000003a520ce0 [ 191.010262][ T731] [ 191.093931][ T799] lag2: Port device veth7 added [ 191.615325][ T806] br1: port 1(lag2) entered blocking state [ 191.615649][ T806] br1: port 1(lag2) entered disabled state [ 191.615967][ T806] lag2: entered allmulticast mode [ 191.616161][ T806] veth1: entered allmulticast mode [ 191.616522][ T806] veth7: entered allmulticast mode [ 191.619064][ T806] veth1: entered promiscuous mode [ 191.619444][ T806] veth7: entered promiscuous mode [ 191.855503][ T809] br1: port 1(lag2) entered blocking state [ 191.855936][ T809] br1: port 1(lag2) entered forwarding state [ 192.190592][ T815] lag3: Mode changed to "loadbalance" [ 192.283260][ T817] 8021q: adding VLAN 0 to HW filter on device lag3 [ 192.588566][ T822] lag3: Port device veth2 added [ 192.686143][ T823] lag3: Port device veth4 added [ 202.192631][ T886] veth7: left allmulticast mode [ 202.207249][ T886] lag2: Port device veth7 removed [ 202.288781][ T887] veth7: left promiscuous mode [ 215.499377][ T937] veth7: entered allmulticast mode [ 215.499678][ T937] veth7: entered promiscuous mode [ 215.510050][ T937] lag2: Port device veth7 added [ 215.849676][ T948] veth1: left allmulticast mode [ 215.852047][ T948] lag2: Port device veth1 removed [ 215.935526][ T949] veth1: left promiscuous mode [ 229.117587][ T57] br1: port 1(lag2) entered disabled state [ 229.199271][ T999] veth7: left allmulticast mode [ 229.201047][ T999] lag2: Port device veth7 removed [ 229.298044][ T1000] veth7: left promiscuous mode [ 229.559721][ T1010] veth1: entered allmulticast mode [ 229.560118][ T1010] veth1: entered promiscuous mode [ 229.561587][ T1010] lag2: Port device veth1 added [ 229.585296][ T39] br1: port 1(lag2) entered blocking state [ 229.585630][ T39] br1: port 1(lag2) entered forwarding state [ 229.966695][ T1021] veth7: entered allmulticast mode [ 229.967046][ T1021] veth7: entered promiscuous mode [ 229.968209][ T1021] lag2: Port device veth7 added [ 243.162087][ T1071] lag2: left allmulticast mode [ 243.162414][ T1071] veth1: left allmulticast mode [ 243.162641][ T1071] veth7: left allmulticast mode [ 243.163100][ T1071] veth1: left promiscuous mode [ 243.163382][ T1071] veth7: left promiscuous mode [ 243.163607][ T1071] br1: port 1(lag2) entered disabled state [ 245.303630][ T1073] br1: port 1(lag2) entered blocking state [ 245.303959][ T1073] br1: port 1(lag2) entered disabled state [ 245.304269][ T1073] lag2: entered allmulticast mode [ 245.304588][ T1073] veth1: entered allmulticast mode [ 245.304797][ T1073] veth7: entered allmulticast mode [ 245.306891][ T1073] veth1: entered promiscuous mode [ 245.307213][ T1073] veth7: entered promiscuous mode [ 245.307998][ T1073] br1: port 1(lag2) entered blocking state [ 245.308294][ T1073] br1: port 1(lag2) entered forwarding state [ 258.491805][ T1123] lag3: Port device veth2 removed [ 271.790297][ T1174] lag3: Port device veth2 added [ 272.164437][ T1185] lag3: Port device veth4 removed [ 285.534972][ T1236] lag3: Port device veth2 removed [ 285.849813][ T1247] lag3: Port device veth4 added [ 286.208419][ T1258] lag3: Port device veth2 added [ 299.357399][ T1308] br1: port 2(lag3) entered blocking state [ 299.357732][ T1308] br1: port 2(lag3) entered disabled state [ 299.358017][ T1308] lag3: entered allmulticast mode [ 299.358237][ T1308] veth4: entered allmulticast mode [ 299.358438][ T1308] veth2: entered allmulticast mode [ 299.361149][ T1308] lag3: entered promiscuous mode [ 299.361404][ T1308] veth4: entered promiscuous mode [ 299.361930][ T1308] veth2: entered promiscuous mode [ 299.362574][ T1308] lag2: entered promiscuous mode [ 299.364511][ T1308] br1: port 2(lag3) entered blocking state [ 299.364795][ T1308] br1: port 2(lag3) entered forwarding state [ 301.506283][ T1310] lag3: left allmulticast mode [ 301.506536][ T1310] veth4: left allmulticast mode [ 301.506735][ T1310] veth2: left allmulticast mode [ 301.506944][ T1310] lag3: left promiscuous mode [ 301.507747][ T1310] veth4: left promiscuous mode [ 301.509058][ T1310] veth2: left promiscuous mode [ 301.511062][ T1310] br1: port 2(lag3) entered disabled state [ 301.514104][ T1310] lag2: left promiscuous mode [ 315.029041][ T1363] lag3: Port device veth4 removed [ 315.112006][ T1364] lag3: Port device veth2 removed [ 315.976741][ T40] br1: port 1(lag2) entered disabled state [ 316.163281][ T1379] lag2: left allmulticast mode [ 316.163598][ T1379] veth1: left allmulticast mode [ 316.163847][ T1379] veth7: left allmulticast mode [ 316.164111][ T1379] br1: port 1(lag2) entered disabled state [ 316.388286][ T1381] lag2: Port device veth7 removed [ 316.466144][ T1382] lag2: Port device veth1 removed [ 318.024123][ T1396] lag4: Port device veth5 removed [ 318.116323][ T1397] lag4: Port device veth3 removed [ 319.750981][ T1411] lag1: Port device veth6 removed [ 319.833607][ T1412] lag1: Port device veth0 removed