[ 187.002236][ T731] lag1: Mode changed to "loadbalance" [ 187.093650][ T733] 8021q: adding VLAN 0 to HW filter on device lag1 [ 187.414387][ T739] lag1: Port device veth0 added [ 187.541344][ T747] lag1: Port device veth6 added [ 188.018996][ T755] 8021q: adding VLAN 0 to HW filter on device lag1 [ 188.828417][ T766] lag4: Mode changed to "loadbalance" [ 188.938444][ T768] 8021q: adding VLAN 0 to HW filter on device lag4 [ 189.269932][ T773] lag4: Port device veth3 added [ 189.352839][ T774] lag4: Port device veth5 added [ 189.843523][ T780] 8021q: adding VLAN 0 to HW filter on device lag4 [ 190.647553][ T791] lag2: Mode changed to "loadbalance" [ 190.756894][ T792] 8021q: adding VLAN 0 to HW filter on device lag2 [ 191.071701][ T798] lag2: Port device veth1 added [ 191.089565][ T731] [ 191.089856][ T731] ============================= [ 191.090061][ T731] WARNING: suspicious RCU usage [ 191.090314][ T731] 6.14.0-rc6-virtme #1 Not tainted [ 191.090486][ T731] ----------------------------- [ 191.090643][ T731] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 191.090930][ T731] [ 191.090930][ T731] other info that might help us debug this: [ 191.090930][ T731] [ 191.091288][ T731] [ 191.091288][ T731] rcu_scheduler_active = 2, debug_locks = 1 [ 191.091537][ T731] 1 lock held by teamd/731: [ 191.091700][ T731] #0: ffffffffa9b5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 191.092057][ T731] [ 191.092057][ T731] stack backtrace: [ 191.092340][ T731] CPU: 1 UID: 0 PID: 731 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 191.092347][ T731] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 191.092350][ T731] Call Trace: [ 191.092353][ T731] [ 191.092357][ T731] dump_stack_lvl+0xb0/0xd0 [ 191.092370][ T731] lockdep_rcu_suspicious+0x1ea/0x280 [ 191.092388][ T731] dev_hard_start_xmit+0x2fc/0x3f0 [ 191.092406][ T731] __dev_queue_xmit+0xfaf/0x18d0 [ 191.092430][ T731] ? __pfx___dev_queue_xmit+0x10/0x10 [ 191.092437][ T731] ? packet_parse_headers+0x231/0x9c0 [ 191.092453][ T731] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 191.092464][ T731] ? __pfx_packet_parse_headers+0x10/0x10 [ 191.092472][ T731] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 191.092482][ T731] ? packet_cached_dev_get+0xd5/0x210 [ 191.092498][ T731] packet_snd+0xd0c/0x19d0 [ 191.092523][ T731] ? __pfx_packet_snd+0x10/0x10 [ 191.092535][ T731] ? build_sched_domains+0x14d0/0x1690 [ 191.092546][ T731] ? __lock_release+0x103/0x460 [ 191.092551][ T731] ? __might_fault+0x11b/0x170 [ 191.092561][ T731] ? __pfx___lock_release+0x10/0x10 [ 191.092575][ T731] __sys_sendto+0x3c3/0x450 [ 191.092585][ T731] ? __pfx___sys_sendto+0x10/0x10 [ 191.092590][ T731] ? __might_fault+0x11b/0x170 [ 191.092612][ T731] ? __sys_getsockname+0x150/0x1f0 [ 191.092616][ T731] ? __pfx___sys_getsockname+0x10/0x10 [ 191.092622][ T731] ? __pfx___up_read+0x10/0x10 [ 191.092631][ T731] ? do_user_addr_fault+0x972/0xe30 [ 191.092641][ T731] ? do_user_addr_fault+0x97c/0xe30 [ 191.092648][ T731] __x64_sys_sendto+0xe0/0x1c0 [ 191.092652][ T731] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 191.092658][ T731] do_syscall_64+0xc1/0x1d0 [ 191.092666][ T731] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.092673][ T731] RIP: 0033:0x7f936127a8f0 [ 191.092679][ 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 [ 191.092682][ T731] RSP: 002b:00007ffd2a301348 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 191.092686][ T731] RAX: ffffffffffffffda RBX: 000000001feaf840 RCX: 00007f936127a8f0 [ 191.092688][ T731] RDX: 000000000000007c RSI: 00007ffd2a3013c0 RDI: 0000000000000006 [ 191.092691][ T731] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 191.092692][ T731] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 191.092694][ T731] R13: 00007ffd2a3013c0 R14: 0000000000000006 R15: 000000001feafce0 [ 191.092711][ T731] [ 191.203361][ T799] lag2: Port device veth7 added [ 191.791392][ T805] br1: port 1(lag2) entered blocking state [ 191.791952][ T805] br1: port 1(lag2) entered disabled state [ 191.792376][ T805] lag2: entered allmulticast mode [ 191.792676][ T805] veth1: entered allmulticast mode [ 191.793231][ T805] veth7: entered allmulticast mode [ 191.796553][ T805] veth1: entered promiscuous mode [ 191.797006][ T805] veth7: entered promiscuous mode [ 192.080640][ T809] br1: port 1(lag2) entered blocking state [ 192.081185][ T809] br1: port 1(lag2) entered forwarding state [ 192.431852][ T815] lag3: Mode changed to "loadbalance" [ 192.524309][ T817] 8021q: adding VLAN 0 to HW filter on device lag3 [ 192.827811][ T822] lag3: Port device veth2 added [ 192.943953][ T823] lag3: Port device veth4 added [ 202.641783][ T886] veth7: left allmulticast mode [ 202.645511][ T886] lag2: Port device veth7 removed [ 202.789608][ T887] veth7: left promiscuous mode [ 216.028826][ T937] veth7: entered allmulticast mode [ 216.029115][ T937] veth7: entered promiscuous mode [ 216.030303][ T937] lag2: Port device veth7 added [ 216.366933][ T948] veth1: left allmulticast mode [ 216.369427][ T948] lag2: Port device veth1 removed [ 216.459613][ T949] veth1: left promiscuous mode [ 229.639103][ T41] br1: port 1(lag2) entered disabled state [ 229.726073][ T999] veth7: left allmulticast mode [ 229.728496][ T999] lag2: Port device veth7 removed [ 229.818011][ T1000] veth7: left promiscuous mode [ 230.073557][ T1010] veth1: entered allmulticast mode [ 230.073876][ T1010] veth1: entered promiscuous mode [ 230.074825][ T1010] lag2: Port device veth1 added [ 230.098458][ T38] br1: port 1(lag2) entered blocking state [ 230.098788][ T38] br1: port 1(lag2) entered forwarding state [ 230.423181][ T1021] veth7: entered allmulticast mode [ 230.423453][ T1021] veth7: entered promiscuous mode [ 230.424373][ T1021] lag2: Port device veth7 added [ 243.687902][ T1071] lag2: left allmulticast mode [ 243.688232][ T1071] veth1: left allmulticast mode [ 243.688494][ T1071] veth7: left allmulticast mode [ 243.689155][ T1071] veth1: left promiscuous mode [ 243.689453][ T1071] veth7: left promiscuous mode [ 243.689678][ T1071] br1: port 1(lag2) entered disabled state [ 245.830423][ T1073] br1: port 1(lag2) entered blocking state [ 245.830734][ T1073] br1: port 1(lag2) entered disabled state [ 245.831014][ T1073] lag2: entered allmulticast mode [ 245.831198][ T1073] veth1: entered allmulticast mode [ 245.831376][ T1073] veth7: entered allmulticast mode [ 245.833759][ T1073] veth1: entered promiscuous mode [ 245.833995][ T1073] veth7: entered promiscuous mode [ 245.834826][ T1073] br1: port 1(lag2) entered blocking state [ 245.835100][ T1073] br1: port 1(lag2) entered forwarding state [ 259.046233][ T1123] lag3: Port device veth2 removed [ 272.405708][ T1174] lag3: Port device veth2 added [ 272.724770][ T1185] lag3: Port device veth4 removed [ 286.071022][ T1236] lag3: Port device veth2 removed [ 286.405315][ T1247] lag3: Port device veth4 added [ 286.790019][ T1258] lag3: Port device veth2 added [ 299.960144][ T1308] br1: port 2(lag3) entered blocking state [ 299.960594][ T1308] br1: port 2(lag3) entered disabled state [ 299.961037][ T1308] lag3: entered allmulticast mode [ 299.961319][ T1308] veth4: entered allmulticast mode [ 299.961605][ T1308] veth2: entered allmulticast mode [ 299.965074][ T1308] lag3: entered promiscuous mode [ 299.965461][ T1308] veth4: entered promiscuous mode [ 299.966246][ T1308] veth2: entered promiscuous mode [ 299.967200][ T1308] lag2: entered promiscuous mode [ 299.970083][ T1308] br1: port 2(lag3) entered blocking state [ 299.970480][ T1308] br1: port 2(lag3) entered forwarding state [ 302.105067][ T1310] lag3: left allmulticast mode [ 302.105296][ T1310] veth4: left allmulticast mode [ 302.105489][ T1310] veth2: left allmulticast mode [ 302.105681][ T1310] lag3: left promiscuous mode [ 302.105877][ T1310] veth4: left promiscuous mode [ 302.106533][ T1310] veth2: left promiscuous mode [ 302.107168][ T1310] br1: port 2(lag3) entered disabled state [ 302.112710][ T1310] lag2: left promiscuous mode [ 315.635326][ T1363] lag3: Port device veth4 removed [ 315.721648][ T1364] lag3: Port device veth2 removed [ 316.475406][ T152] br1: port 1(lag2) entered disabled state [ 316.621754][ T1379] lag2: left allmulticast mode [ 316.621978][ T1379] veth1: left allmulticast mode [ 316.622160][ T1379] veth7: left allmulticast mode [ 316.622380][ T1379] br1: port 1(lag2) entered disabled state [ 316.847363][ T1381] lag2: Port device veth7 removed [ 316.925712][ T1382] lag2: Port device veth1 removed [ 318.466111][ T1397] lag4: Port device veth5 removed [ 318.552662][ T1398] lag4: Port device veth3 removed [ 320.125659][ T1411] lag1: Port device veth6 removed [ 320.213848][ T1412] lag1: Port device veth0 removed