[ 12.719715][ T300] lag1: Mode changed to "loadbalance" [ 13.200636][ T309] lag1: Port device veth0 added [ 13.291943][ T310] lag1: Port device veth6 added [ 14.145264][ T322] 8021q: 802.1Q VLAN Support v1.8 [ 14.145565][ T322] 8021q: adding VLAN 0 to HW filter on device lag1 [ 15.312116][ T341] lag4: Mode changed to "loadbalance" [ 15.402490][ T343] 8021q: adding VLAN 0 to HW filter on device lag4 [ 15.768414][ T349] lag4: Port device veth3 added [ 15.835821][ T350] lag4: Port device veth5 added [ 16.212021][ T356] 8021q: adding VLAN 0 to HW filter on device lag4 [ 16.226349][ T356] ip (356) used greatest stack depth: 23792 bytes left [ 17.747063][ T379] lag2: Mode changed to "loadbalance" [ 17.857538][ T381] 8021q: adding VLAN 0 to HW filter on device lag2 [ 18.226991][ T387] lag2: Port device veth1 added [ 18.234792][ T300] [ 18.235072][ T300] ============================= [ 18.235289][ T300] WARNING: suspicious RCU usage [ 18.235469][ T300] 6.14.0-rc6-virtme #1 Not tainted [ 18.235658][ T300] ----------------------------- [ 18.235835][ T300] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 18.236138][ T300] [ 18.236138][ T300] other info that might help us debug this: [ 18.236138][ T300] [ 18.236529][ T300] [ 18.236529][ T300] rcu_scheduler_active = 2, debug_locks = 1 [ 18.236792][ T300] 1 lock held by teamd/300: [ 18.236971][ T300] #0: ffffffff9275b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 18.237299][ T300] [ 18.237299][ T300] stack backtrace: [ 18.237527][ T300] CPU: 3 UID: 0 PID: 300 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 18.237531][ T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.237534][ T300] Call Trace: [ 18.237536][ T300] [ 18.237538][ T300] dump_stack_lvl+0xb0/0xd0 [ 18.237547][ T300] lockdep_rcu_suspicious+0x1ea/0x280 [ 18.237559][ T300] dev_hard_start_xmit+0x2fc/0x3f0 [ 18.237570][ T300] __dev_queue_xmit+0xfaf/0x18d0 [ 18.237584][ T300] ? __pfx___dev_queue_xmit+0x10/0x10 [ 18.237588][ T300] ? packet_parse_headers+0x231/0x9c0 [ 18.237597][ T300] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 18.237604][ T300] ? __pfx_packet_parse_headers+0x10/0x10 [ 18.237608][ T300] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 18.237615][ T300] ? packet_cached_dev_get+0xd5/0x210 [ 18.237624][ T300] packet_snd+0xd0c/0x19d0 [ 18.237639][ T300] ? __pfx_packet_snd+0x10/0x10 [ 18.237645][ T300] ? build_sched_domains+0x14d0/0x1690 [ 18.237654][ T300] ? __lock_release+0x103/0x460 [ 18.237658][ T300] ? __might_fault+0x11b/0x170 [ 18.237665][ T300] ? __pfx___lock_release+0x10/0x10 [ 18.237674][ T300] __sys_sendto+0x3c3/0x450 [ 18.237680][ T300] ? __pfx___sys_sendto+0x10/0x10 [ 18.237682][ T300] ? __might_fault+0x11b/0x170 [ 18.237697][ T300] ? __sys_getsockname+0x150/0x1f0 [ 18.237701][ T300] ? __pfx___sys_getsockname+0x10/0x10 [ 18.237706][ T300] ? __pfx___up_read+0x10/0x10 [ 18.237716][ T300] ? do_user_addr_fault+0x972/0xe30 [ 18.237726][ T300] ? do_user_addr_fault+0x97c/0xe30 [ 18.237734][ T300] __x64_sys_sendto+0xe0/0x1c0 [ 18.237738][ T300] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 18.237743][ T300] do_syscall_64+0xc1/0x1d0 [ 18.237751][ T300] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 18.237757][ T300] RIP: 0033:0x7f11a31e28f0 [ 18.237762][ 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 [ 18.237765][ T300] RSP: 002b:00007ffd7517d7c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 18.237769][ T300] RAX: ffffffffffffffda RBX: 0000000036c2a740 RCX: 00007f11a31e28f0 [ 18.237771][ T300] RDX: 000000000000007c RSI: 00007ffd7517d840 RDI: 0000000000000006 [ 18.237773][ T300] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 18.237775][ T300] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 18.237777][ T300] R13: 00007ffd7517d840 R14: 0000000000000006 R15: 0000000036c2ac90 [ 18.237793][ T300] [ 18.309413][ T388] lag2: Port device veth7 added [ 19.392001][ T403] br1: port 1(lag2.100) entered blocking state [ 19.393622][ T403] br1: port 1(lag2.100) entered disabled state [ 19.394263][ T403] lag2.100: entered allmulticast mode [ 19.394550][ T403] lag2: entered allmulticast mode [ 19.394858][ T403] veth1: entered allmulticast mode [ 19.395405][ T403] veth7: entered allmulticast mode [ 19.400035][ T403] lag2.100: entered promiscuous mode [ 19.400941][ T403] lag2: entered promiscuous mode [ 19.401151][ T403] veth1: entered promiscuous mode [ 19.401630][ T403] veth7: entered promiscuous mode [ 19.751303][ T410] br2: port 1(lag2.200) entered blocking state [ 19.751582][ T410] br2: port 1(lag2.200) entered disabled state [ 19.751840][ T410] lag2.200: entered allmulticast mode [ 19.753742][ T410] lag2.200: entered promiscuous mode [ 19.988209][ T413] br1: port 1(lag2.100) entered blocking state [ 19.988716][ T413] br1: port 1(lag2.100) entered forwarding state [ 20.065910][ T414] br2: port 1(lag2.200) entered blocking state [ 20.066260][ T414] br2: port 1(lag2.200) entered forwarding state [ 20.529426][ T422] lag3: Mode changed to "loadbalance" [ 20.624528][ T424] 8021q: adding VLAN 0 to HW filter on device lag3 [ 20.989083][ T430] lag3: Port device veth2 added [ 21.092137][ T431] lag3: Port device veth4 added [ 33.410725][ T511] ip (511) used greatest stack depth: 23656 bytes left [ 33.491450][ T512] veth7: left promiscuous mode [ 33.492486][ T512] veth7: left allmulticast mode [ 33.495743][ T512] lag2: Port device veth7 removed [ 33.510800][ T512] ip (512) used greatest stack depth: 23496 bytes left [ 49.091143][ T573] veth7: entered promiscuous mode [ 49.091610][ T573] veth7: entered allmulticast mode [ 49.095338][ T573] lag2: Port device veth7 added [ 49.476230][ T584] veth1: left promiscuous mode [ 49.476765][ T584] veth1: left allmulticast mode [ 49.479935][ T584] lag2: Port device veth1 removed [ 65.084618][ T40] br1: port 1(lag2.100) entered disabled state [ 65.087047][ T40] br2: port 1(lag2.200) entered disabled state [ 65.148964][ T645] veth7: left promiscuous mode [ 65.150446][ T645] veth7: left allmulticast mode [ 65.152134][ T645] lag2: Port device veth7 removed [ 65.487414][ T656] veth1: entered promiscuous mode [ 65.487843][ T656] veth1: entered allmulticast mode [ 65.488744][ T656] lag2: Port device veth1 added [ 65.521284][ T40] br1: port 1(lag2.100) entered blocking state [ 65.521622][ T40] br1: port 1(lag2.100) entered forwarding state [ 65.523203][ T40] br2: port 1(lag2.200) entered blocking state [ 65.523549][ T40] br2: port 1(lag2.200) entered forwarding state [ 65.826439][ T668] veth7: entered promiscuous mode [ 65.826957][ T668] veth7: entered allmulticast mode [ 65.827849][ T668] lag2: Port device veth7 added [ 81.305347][ T728] lag2.200: left allmulticast mode [ 81.305619][ T728] lag2.200: left promiscuous mode [ 81.306321][ T728] br2: port 1(lag2.200) entered disabled state [ 81.381951][ T729] lag2.100: left allmulticast mode [ 81.382192][ T729] lag2: left allmulticast mode [ 81.382415][ T729] veth1: left allmulticast mode [ 81.382636][ T729] veth7: left allmulticast mode [ 81.382843][ T729] lag2.100: left promiscuous mode [ 81.383018][ T729] lag2: left promiscuous mode [ 81.383198][ T729] veth1: left promiscuous mode [ 81.383898][ T729] veth7: left promiscuous mode [ 81.384797][ T729] br1: port 1(lag2.100) entered disabled state [ 83.535793][ T731] br1: port 1(lag2.100) entered blocking state [ 83.536635][ T731] br1: port 1(lag2.100) entered disabled state [ 83.537090][ T731] lag2.100: entered allmulticast mode [ 83.537405][ T731] lag2: entered allmulticast mode [ 83.537723][ T731] veth1: entered allmulticast mode [ 83.537999][ T731] veth7: entered allmulticast mode [ 83.540048][ T731] lag2.100: entered promiscuous mode [ 83.540278][ T731] lag2: entered promiscuous mode [ 83.540488][ T731] veth1: entered promiscuous mode [ 83.540924][ T731] veth7: entered promiscuous mode [ 83.542846][ T731] br1: port 1(lag2.100) entered blocking state [ 83.543184][ T731] br1: port 1(lag2.100) entered forwarding state [ 83.643895][ T732] br2: port 1(lag2.200) entered blocking state [ 83.644799][ T732] br2: port 1(lag2.200) entered disabled state [ 83.645095][ T732] lag2.200: entered allmulticast mode [ 83.647106][ T732] lag2.200: entered promiscuous mode [ 83.648274][ T732] br2: port 1(lag2.200) entered blocking state [ 83.648541][ T732] br2: port 1(lag2.200) entered forwarding state [ 99.170635][ T792] lag3: Port device veth2 removed [ 114.817670][ T853] lag3: Port device veth2 added [ 115.175055][ T864] lag3: Port device veth4 removed [ 130.806991][ T925] lag3: Port device veth2 removed [ 131.146253][ T936] lag3: Port device veth4 added [ 131.494847][ T947] lag3: Port device veth2 added [ 147.895258][ T1017] lag3: Port device veth4 removed [ 147.976796][ T1018] lag3: Port device veth2 removed [ 148.754163][ T1030] br2: port 1(lag2.200) entered disabled state [ 148.848025][ T1031] br1: port 1(lag2.100) entered disabled state [ 149.095841][ T1034] lag2.200: left allmulticast mode [ 149.096126][ T1034] lag2.200: left promiscuous mode [ 149.096741][ T1034] br2: port 1(lag2.200) entered disabled state [ 149.336495][ T1036] lag2.100: left allmulticast mode [ 149.336779][ T1036] lag2: left allmulticast mode [ 149.336993][ T1036] veth1: left allmulticast mode [ 149.337200][ T1036] veth7: left allmulticast mode [ 149.337425][ T1036] lag2.100: left promiscuous mode [ 149.337616][ T1036] lag2: left promiscuous mode [ 149.337809][ T1036] veth1: left promiscuous mode [ 149.338305][ T1036] veth7: left promiscuous mode [ 149.339162][ T1036] br1: port 1(lag2.100) entered disabled state [ 149.820140][ T1040] lag2: Port device veth7 removed [ 149.898991][ T1041] lag2: Port device veth1 removed [ 151.646395][ T1057] lag4: Port device veth5 removed [ 151.726483][ T1058] lag4: Port device veth3 removed [ 153.464127][ T1074] lag1: Port device veth6 removed [ 153.544677][ T1075] lag1: Port device veth0 removed