[ 10.686657][ T254] ip (254) used greatest stack depth: 23248 bytes left [ 13.131934][ T302] lag1: Mode changed to "loadbalance" [ 13.682325][ T310] lag1: Port device veth0 added [ 13.774502][ T311] lag1: Port device veth6 added [ 14.713139][ T323] 8021q: 802.1Q VLAN Support v1.8 [ 14.713562][ T323] 8021q: adding VLAN 0 to HW filter on device lag1 [ 16.021910][ T342] lag4: Mode changed to "loadbalance" [ 16.118697][ T344] 8021q: adding VLAN 0 to HW filter on device lag4 [ 16.503217][ T350] lag4: Port device veth3 added [ 16.589327][ T351] lag4: Port device veth5 added [ 17.055556][ T357] 8021q: adding VLAN 0 to HW filter on device lag4 [ 18.727773][ T380] lag2: Mode changed to "loadbalance" [ 18.824650][ T382] 8021q: adding VLAN 0 to HW filter on device lag2 [ 19.227868][ T388] lag2: Port device veth1 added [ 19.238255][ T302] [ 19.238501][ T302] ============================= [ 19.238681][ T302] WARNING: suspicious RCU usage [ 19.238855][ T302] 6.14.0-rc6-virtme #1 Not tainted [ 19.239035][ T302] ----------------------------- [ 19.239219][ T302] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 19.239518][ T302] [ 19.239518][ T302] other info that might help us debug this: [ 19.239518][ T302] [ 19.239846][ T302] [ 19.239846][ T302] rcu_scheduler_active = 2, debug_locks = 1 [ 19.240114][ T302] 1 lock held by teamd/302: [ 19.240294][ T302] #0: ffffffffb8d5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 19.240621][ T302] [ 19.240621][ T302] stack backtrace: [ 19.240857][ T302] CPU: 1 UID: 0 PID: 302 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 19.240862][ T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.240865][ T302] Call Trace: [ 19.240867][ T302] [ 19.240870][ T302] dump_stack_lvl+0xb0/0xd0 [ 19.240878][ T302] lockdep_rcu_suspicious+0x1ea/0x280 [ 19.240890][ T302] dev_hard_start_xmit+0x2fc/0x3f0 [ 19.240901][ T302] __dev_queue_xmit+0xfaf/0x18d0 [ 19.240916][ T302] ? __pfx___dev_queue_xmit+0x10/0x10 [ 19.240920][ T302] ? packet_parse_headers+0x231/0x9c0 [ 19.240929][ T302] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 19.240936][ T302] ? __pfx_packet_parse_headers+0x10/0x10 [ 19.240940][ T302] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 19.240947][ T302] ? packet_cached_dev_get+0xd5/0x210 [ 19.240956][ T302] packet_snd+0xd0c/0x19d0 [ 19.240971][ T302] ? __pfx_packet_snd+0x10/0x10 [ 19.240974][ T302] ? __lock_acquire+0xb9a/0x1680 [ 19.240995][ T302] __sys_sendto+0x3c3/0x450 [ 19.241002][ T302] ? __pfx___sys_sendto+0x10/0x10 [ 19.241004][ T302] ? __pfx___lock_release+0x10/0x10 [ 19.241008][ T302] ? trace_lock_acquire+0x14c/0x1f0 [ 19.241020][ T302] ? rseq_update_cpu_node_id+0xe6/0x140 [ 19.241029][ T302] ? __rseq_handle_notify_resume+0x288/0x3e0 [ 19.241036][ T302] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 19.241051][ T302] __x64_sys_sendto+0xe0/0x1c0 [ 19.241055][ T302] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 19.241060][ T302] do_syscall_64+0xc1/0x1d0 [ 19.241075][ T302] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 19.241081][ T302] RIP: 0033:0x7fc193fd78f0 [ 19.241087][ 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 [ 19.241090][ T302] RSP: 002b:00007fff6ab937e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 19.241094][ T302] RAX: ffffffffffffffda RBX: 0000000025226740 RCX: 00007fc193fd78f0 [ 19.241096][ T302] RDX: 000000000000007c RSI: 00007fff6ab93860 RDI: 0000000000000006 [ 19.241098][ T302] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 19.241100][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 19.241102][ T302] R13: 00007fff6ab93860 R14: 0000000000000006 R15: 0000000025226c90 [ 19.241118][ T302] [ 19.322799][ T389] lag2: Port device veth7 added [ 20.378195][ T404] br1: port 1(lag2.100) entered blocking state [ 20.378497][ T404] br1: port 1(lag2.100) entered disabled state [ 20.378928][ T404] lag2.100: entered allmulticast mode [ 20.379147][ T404] lag2: entered allmulticast mode [ 20.379366][ T404] veth1: entered allmulticast mode [ 20.379930][ T404] veth7: entered allmulticast mode [ 20.382732][ T404] lag2.100: entered promiscuous mode [ 20.383234][ T404] lag2: entered promiscuous mode [ 20.383418][ T404] veth1: entered promiscuous mode [ 20.383885][ T404] veth7: entered promiscuous mode [ 20.753003][ T411] br2: port 1(lag2.200) entered blocking state [ 20.753760][ T411] br2: port 1(lag2.200) entered disabled state [ 20.754147][ T411] lag2.200: entered allmulticast mode [ 20.756187][ T411] lag2.200: entered promiscuous mode [ 21.001424][ T414] br1: port 1(lag2.100) entered blocking state [ 21.001907][ T414] br1: port 1(lag2.100) entered forwarding state [ 21.088064][ T415] br2: port 1(lag2.200) entered blocking state [ 21.088383][ T415] br2: port 1(lag2.200) entered forwarding state [ 21.578721][ T423] lag3: Mode changed to "loadbalance" [ 21.680961][ T425] 8021q: adding VLAN 0 to HW filter on device lag3 [ 22.064965][ T431] lag3: Port device veth2 added [ 22.159385][ T432] lag3: Port device veth4 added [ 34.642486][ T513] veth7: left promiscuous mode [ 34.643051][ T513] veth7: left allmulticast mode [ 34.645526][ T513] lag2: Port device veth7 removed [ 50.335892][ T574] veth7: entered promiscuous mode [ 50.336448][ T574] veth7: entered allmulticast mode [ 50.337827][ T574] lag2: Port device veth7 added [ 50.679852][ T585] veth1: left promiscuous mode [ 50.680796][ T585] veth1: left allmulticast mode [ 50.684130][ T585] lag2: Port device veth1 removed [ 66.532797][ T39] br1: port 1(lag2.100) entered disabled state [ 66.535604][ T39] br2: port 1(lag2.200) entered disabled state [ 66.607232][ T647] veth7: left promiscuous mode [ 66.607745][ T647] veth7: left allmulticast mode [ 66.609902][ T647] lag2: Port device veth7 removed [ 66.951729][ T658] veth1: entered promiscuous mode [ 66.952253][ T658] veth1: entered allmulticast mode [ 66.953210][ T658] lag2: Port device veth1 added [ 66.987962][ T380] br1: port 1(lag2.100) entered blocking state [ 66.988299][ T380] br1: port 1(lag2.100) entered forwarding state [ 66.989471][ T41] br2: port 1(lag2.200) entered blocking state [ 66.989734][ T41] br2: port 1(lag2.200) entered forwarding state [ 67.283427][ T669] veth7: entered promiscuous mode [ 67.283920][ T669] veth7: entered allmulticast mode [ 67.284853][ T669] lag2: Port device veth7 added [ 82.865816][ T729] lag2.200: left allmulticast mode [ 82.866134][ T729] lag2.200: left promiscuous mode [ 82.866849][ T729] br2: port 1(lag2.200) entered disabled state [ 82.973036][ T730] lag2.100: left allmulticast mode [ 82.973304][ T730] lag2: left allmulticast mode [ 82.973635][ T730] veth1: left allmulticast mode [ 82.973852][ T730] veth7: left allmulticast mode [ 82.974085][ T730] lag2.100: left promiscuous mode [ 82.974283][ T730] lag2: left promiscuous mode [ 82.974478][ T730] veth1: left promiscuous mode [ 82.975285][ T730] veth7: left promiscuous mode [ 82.976189][ T730] br1: port 1(lag2.100) entered disabled state [ 85.108861][ T732] br1: port 1(lag2.100) entered blocking state [ 85.109214][ T732] br1: port 1(lag2.100) entered disabled state [ 85.109501][ T732] lag2.100: entered allmulticast mode [ 85.109697][ T732] lag2: entered allmulticast mode [ 85.109896][ T732] veth1: entered allmulticast mode [ 85.110141][ T732] veth7: entered allmulticast mode [ 85.112537][ T732] lag2.100: entered promiscuous mode [ 85.112843][ T732] lag2: entered promiscuous mode [ 85.113047][ T732] veth1: entered promiscuous mode [ 85.113575][ T732] veth7: entered promiscuous mode [ 85.116237][ T732] br1: port 1(lag2.100) entered blocking state [ 85.116601][ T732] br1: port 1(lag2.100) entered forwarding state [ 85.230714][ T733] br2: port 1(lag2.200) entered blocking state [ 85.231223][ T733] br2: port 1(lag2.200) entered disabled state [ 85.231688][ T733] lag2.200: entered allmulticast mode [ 85.234618][ T733] lag2.200: entered promiscuous mode [ 85.235832][ T733] br2: port 1(lag2.200) entered blocking state [ 85.236121][ T733] br2: port 1(lag2.200) entered forwarding state [ 100.779034][ T793] lag3: Port device veth2 removed [ 116.401269][ T854] lag3: Port device veth2 added [ 116.750647][ T865] lag3: Port device veth4 removed [ 132.406824][ T926] lag3: Port device veth2 removed [ 132.753542][ T937] lag3: Port device veth4 added [ 133.109944][ T948] lag3: Port device veth2 added [ 149.424217][ T1018] lag3: Port device veth4 removed [ 149.509900][ T1019] lag3: Port device veth2 removed [ 150.423735][ T1031] br2: port 1(lag2.200) entered disabled state [ 150.507303][ T1032] br1: port 1(lag2.100) entered disabled state [ 150.741012][ T1035] lag2.200: left allmulticast mode [ 150.741288][ T1035] lag2.200: left promiscuous mode [ 150.741912][ T1035] br2: port 1(lag2.200) entered disabled state [ 150.982826][ T1037] lag2.100: left allmulticast mode [ 150.983280][ T1037] lag2: left allmulticast mode [ 150.983651][ T1037] veth1: left allmulticast mode [ 150.984004][ T1037] veth7: left allmulticast mode [ 150.984399][ T1037] lag2.100: left promiscuous mode [ 150.984740][ T1037] lag2: left promiscuous mode [ 150.985094][ T1037] veth1: left promiscuous mode [ 150.985826][ T1037] veth7: left promiscuous mode [ 150.987407][ T1037] br1: port 1(lag2.100) entered disabled state [ 151.457309][ T1041] lag2: Port device veth7 removed [ 151.546301][ T1042] lag2: Port device veth1 removed [ 153.229141][ T1058] lag4: Port device veth5 removed [ 153.315892][ T1059] lag4: Port device veth3 removed [ 155.172352][ T1075] lag1: Port device veth6 removed [ 155.244023][ T1076] lag1: Port device veth0 removed