[ 11.537156][ T253] ip (253) used greatest stack depth: 23120 bytes left [ 14.058086][ T302] lag1: Mode changed to "loadbalance" [ 14.578499][ T311] lag1: Port device veth0 added [ 14.666037][ T312] lag1: Port device veth6 added [ 15.629521][ T324] 8021q: 802.1Q VLAN Support v1.8 [ 15.629880][ T324] 8021q: adding VLAN 0 to HW filter on device lag1 [ 17.037060][ T343] lag4: Mode changed to "loadbalance" [ 17.151495][ T345] 8021q: adding VLAN 0 to HW filter on device lag4 [ 17.614387][ T351] lag4: Port device veth3 added [ 17.709721][ T352] lag4: Port device veth5 added [ 18.180248][ T358] 8021q: adding VLAN 0 to HW filter on device lag4 [ 20.068723][ T381] lag2: Mode changed to "loadbalance" [ 20.177005][ T383] 8021q: adding VLAN 0 to HW filter on device lag2 [ 20.605987][ T389] lag2: Port device veth1 added [ 20.616409][ T302] [ 20.616676][ T302] ============================= [ 20.616852][ T302] WARNING: suspicious RCU usage [ 20.617033][ T302] 6.14.0-rc6-virtme #1 Not tainted [ 20.617219][ T302] ----------------------------- [ 20.617391][ T302] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 20.617681][ T302] [ 20.617681][ T302] other info that might help us debug this: [ 20.617681][ T302] [ 20.618003][ T302] [ 20.618003][ T302] rcu_scheduler_active = 2, debug_locks = 1 [ 20.618275][ T302] 1 lock held by teamd/302: [ 20.618448][ T302] #0: ffffffffa9b5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 20.618755][ T302] [ 20.618755][ T302] stack backtrace: [ 20.618967][ T302] CPU: 1 UID: 0 PID: 302 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 20.618971][ T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.618973][ T302] Call Trace: [ 20.618975][ T302] [ 20.618977][ T302] dump_stack_lvl+0xb0/0xd0 [ 20.618985][ T302] lockdep_rcu_suspicious+0x1ea/0x280 [ 20.618995][ T302] dev_hard_start_xmit+0x2fc/0x3f0 [ 20.619005][ T302] __dev_queue_xmit+0xfaf/0x18d0 [ 20.619020][ T302] ? __pfx___dev_queue_xmit+0x10/0x10 [ 20.619024][ T302] ? packet_parse_headers+0x231/0x9c0 [ 20.619032][ T302] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 20.619038][ T302] ? __pfx_packet_parse_headers+0x10/0x10 [ 20.619043][ T302] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 20.619049][ T302] ? packet_cached_dev_get+0xd5/0x210 [ 20.619058][ T302] packet_snd+0xd0c/0x19d0 [ 20.619073][ T302] ? __pfx_packet_snd+0x10/0x10 [ 20.619079][ T302] ? build_sched_domains+0x14d0/0x1690 [ 20.619087][ T302] ? __lock_release+0x103/0x460 [ 20.619091][ T302] ? __might_fault+0x11b/0x170 [ 20.619099][ T302] ? __pfx___lock_release+0x10/0x10 [ 20.619109][ T302] __sys_sendto+0x3c3/0x450 [ 20.619114][ T302] ? __pfx___sys_sendto+0x10/0x10 [ 20.619117][ T302] ? __might_fault+0x11b/0x170 [ 20.619131][ T302] ? __sys_getsockname+0x150/0x1f0 [ 20.619135][ T302] ? __pfx___sys_getsockname+0x10/0x10 [ 20.619140][ T302] ? __pfx___up_read+0x10/0x10 [ 20.619148][ T302] ? do_user_addr_fault+0x972/0xe30 [ 20.619157][ T302] ? do_user_addr_fault+0x97c/0xe30 [ 20.619164][ T302] __x64_sys_sendto+0xe0/0x1c0 [ 20.619168][ T302] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 20.619173][ T302] do_syscall_64+0xc1/0x1d0 [ 20.619180][ T302] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 20.619184][ T302] RIP: 0033:0x7f8501e4f8f0 [ 20.619189][ 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 [ 20.619192][ T302] RSP: 002b:00007ffe3abb6238 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 20.619196][ T302] RAX: ffffffffffffffda RBX: 000000001d825740 RCX: 00007f8501e4f8f0 [ 20.619198][ T302] RDX: 000000000000007c RSI: 00007ffe3abb62b0 RDI: 0000000000000006 [ 20.619200][ T302] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 20.619201][ T302] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 20.619203][ T302] R13: 00007ffe3abb62b0 R14: 0000000000000006 R15: 000000001d825c90 [ 20.619219][ T302] [ 20.727510][ T390] lag2: Port device veth7 added [ 21.848596][ T404] br1: port 1(lag2.100) entered blocking state [ 21.848953][ T404] br1: port 1(lag2.100) entered disabled state [ 21.849364][ T404] lag2.100: entered allmulticast mode [ 21.849611][ T404] lag2: entered allmulticast mode [ 21.849812][ T404] veth1: entered allmulticast mode [ 21.850182][ T404] veth7: entered allmulticast mode [ 21.852735][ T404] lag2.100: entered promiscuous mode [ 21.852970][ T404] lag2: entered promiscuous mode [ 21.854027][ T404] veth1: entered promiscuous mode [ 21.854547][ T404] veth7: entered promiscuous mode [ 22.234876][ T411] br2: port 1(lag2.200) entered blocking state [ 22.235246][ T411] br2: port 1(lag2.200) entered disabled state [ 22.235512][ T411] lag2.200: entered allmulticast mode [ 22.238092][ T411] lag2.200: entered promiscuous mode [ 22.493797][ T414] br1: port 1(lag2.100) entered blocking state [ 22.494224][ T414] br1: port 1(lag2.100) entered forwarding state [ 22.580832][ T415] br2: port 1(lag2.200) entered blocking state [ 22.581175][ T415] br2: port 1(lag2.200) entered forwarding state [ 23.116870][ T423] lag3: Mode changed to "loadbalance" [ 23.214334][ T425] 8021q: adding VLAN 0 to HW filter on device lag3 [ 23.609727][ T431] lag3: Port device veth2 added [ 23.730552][ T432] lag3: Port device veth4 added [ 36.526345][ T515] veth7: left promiscuous mode [ 36.526918][ T515] veth7: left allmulticast mode [ 36.529968][ T515] lag2: Port device veth7 removed [ 52.469933][ T576] veth7: entered promiscuous mode [ 52.470427][ T576] veth7: entered allmulticast mode [ 52.471737][ T576] lag2: Port device veth7 added [ 52.834799][ T587] veth1: left promiscuous mode [ 52.835664][ T587] veth1: left allmulticast mode [ 52.837968][ T587] lag2: Port device veth1 removed [ 68.714673][ T57] br1: port 1(lag2.100) entered disabled state [ 68.718607][ T57] br2: port 1(lag2.200) entered disabled state [ 68.823421][ T648] veth7: left promiscuous mode [ 68.823921][ T648] veth7: left allmulticast mode [ 68.825595][ T648] lag2: Port device veth7 removed [ 69.206551][ T659] veth1: entered promiscuous mode [ 69.207024][ T659] veth1: entered allmulticast mode [ 69.207961][ T659] lag2: Port device veth1 added [ 69.250783][ T302] br1: port 1(lag2.100) entered blocking state [ 69.251232][ T302] br1: port 1(lag2.100) entered forwarding state [ 69.255610][ T281] br2: port 1(lag2.200) entered blocking state [ 69.256052][ T281] br2: port 1(lag2.200) entered forwarding state [ 69.587345][ T670] veth7: entered promiscuous mode [ 69.587791][ T670] veth7: entered allmulticast mode [ 69.588791][ T670] lag2: Port device veth7 added [ 85.359189][ T730] lag2.200: left allmulticast mode [ 85.359563][ T730] lag2.200: left promiscuous mode [ 85.360261][ T730] br2: port 1(lag2.200) entered disabled state [ 85.466361][ T731] lag2.100: left allmulticast mode [ 85.466607][ T731] lag2: left allmulticast mode [ 85.466808][ T731] veth1: left allmulticast mode [ 85.467007][ T731] veth7: left allmulticast mode [ 85.467242][ T731] lag2.100: left promiscuous mode [ 85.467461][ T731] lag2: left promiscuous mode [ 85.467654][ T731] veth1: left promiscuous mode [ 85.468220][ T731] veth7: left promiscuous mode [ 85.469032][ T731] br1: port 1(lag2.100) entered disabled state [ 87.622751][ T733] br1: port 1(lag2.100) entered blocking state [ 87.623072][ T733] br1: port 1(lag2.100) entered disabled state [ 87.623395][ T733] lag2.100: entered allmulticast mode [ 87.623603][ T733] lag2: entered allmulticast mode [ 87.623797][ T733] veth1: entered allmulticast mode [ 87.623997][ T733] veth7: entered allmulticast mode [ 87.626492][ T733] lag2.100: entered promiscuous mode [ 87.626713][ T733] lag2: entered promiscuous mode [ 87.626901][ T733] veth1: entered promiscuous mode [ 87.627337][ T733] veth7: entered promiscuous mode [ 87.628996][ T733] br1: port 1(lag2.100) entered blocking state [ 87.629332][ T733] br1: port 1(lag2.100) entered forwarding state [ 87.745066][ T734] br2: port 1(lag2.200) entered blocking state [ 87.745796][ T734] br2: port 1(lag2.200) entered disabled state [ 87.746254][ T734] lag2.200: entered allmulticast mode [ 87.749609][ T734] lag2.200: entered promiscuous mode [ 87.751324][ T734] br2: port 1(lag2.200) entered blocking state [ 87.751679][ T734] br2: port 1(lag2.200) entered forwarding state [ 103.522632][ T794] lag3: Port device veth2 removed [ 119.396263][ T855] lag3: Port device veth2 added [ 119.742432][ T866] lag3: Port device veth4 removed [ 135.500910][ T927] lag3: Port device veth2 removed [ 135.883366][ T938] lag3: Port device veth4 added [ 136.244908][ T949] lag3: Port device veth2 added [ 152.689427][ T1019] lag3: Port device veth4 removed [ 152.767871][ T1020] lag3: Port device veth2 removed [ 153.655770][ T1032] br2: port 1(lag2.200) entered disabled state [ 153.740010][ T1033] br1: port 1(lag2.100) entered disabled state [ 153.991754][ T1036] lag2.200: left allmulticast mode [ 153.992157][ T1036] lag2.200: left promiscuous mode [ 153.992763][ T1036] br2: port 1(lag2.200) entered disabled state [ 154.221579][ T1038] lag2.100: left allmulticast mode [ 154.221800][ T1038] lag2: left allmulticast mode [ 154.222017][ T1038] veth1: left allmulticast mode [ 154.222780][ T1038] veth7: left allmulticast mode [ 154.222982][ T1038] lag2.100: left promiscuous mode [ 154.223172][ T1038] lag2: left promiscuous mode [ 154.223349][ T1038] veth1: left promiscuous mode [ 154.223959][ T1038] veth7: left promiscuous mode [ 154.224722][ T1038] br1: port 1(lag2.100) entered disabled state [ 154.720835][ T1042] lag2: Port device veth7 removed [ 154.790237][ T1043] lag2: Port device veth1 removed [ 156.610001][ T1060] lag4: Port device veth5 removed [ 156.697860][ T1061] lag4: Port device veth3 removed [ 158.443350][ T1076] lag1: Port device veth6 removed [ 158.520271][ T1077] lag1: Port device veth0 removed