[ 10.973895][ T254] ip (254) used greatest stack depth: 23424 bytes left [ 11.718802][ T276] ip (276) used greatest stack depth: 23112 bytes left [ 13.314991][ T300] lag1: Mode changed to "loadbalance" [ 13.771578][ T309] lag1: Port device veth0 added [ 13.857586][ T310] lag1: Port device veth6 added [ 14.759106][ T323] 8021q: 802.1Q VLAN Support v1.8 [ 14.759444][ T323] 8021q: adding VLAN 0 to HW filter on device lag1 [ 16.002996][ T343] lag4: Mode changed to "loadbalance" [ 16.109677][ T345] 8021q: adding VLAN 0 to HW filter on device lag4 [ 16.519299][ T351] lag4: Port device veth3 added [ 16.603162][ T352] lag4: Port device veth5 added [ 17.069291][ T358] 8021q: adding VLAN 0 to HW filter on device lag4 [ 18.667028][ T381] lag2: Mode changed to "loadbalance" [ 18.762545][ T383] 8021q: adding VLAN 0 to HW filter on device lag2 [ 19.133315][ T389] lag2: Port device veth1 added [ 19.142366][ T300] [ 19.142591][ T300] ============================= [ 19.142765][ T300] WARNING: suspicious RCU usage [ 19.143030][ T300] 6.14.0-rc6-virtme #1 Not tainted [ 19.143234][ T300] ----------------------------- [ 19.143417][ T300] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 19.143710][ T300] [ 19.143710][ T300] other info that might help us debug this: [ 19.143710][ T300] [ 19.144076][ T300] [ 19.144076][ T300] rcu_scheduler_active = 2, debug_locks = 1 [ 19.144351][ T300] 1 lock held by teamd/300: [ 19.144542][ T300] #0: ffffffff8cb5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 19.144892][ T300] [ 19.144892][ T300] stack backtrace: [ 19.145138][ T300] CPU: 2 UID: 0 PID: 300 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 19.145143][ T300] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.145145][ T300] Call Trace: [ 19.145148][ T300] [ 19.145150][ T300] dump_stack_lvl+0xb0/0xd0 [ 19.145159][ T300] lockdep_rcu_suspicious+0x1ea/0x280 [ 19.145171][ T300] dev_hard_start_xmit+0x2fc/0x3f0 [ 19.145182][ T300] __dev_queue_xmit+0xfaf/0x18d0 [ 19.145196][ T300] ? __pfx___dev_queue_xmit+0x10/0x10 [ 19.145200][ T300] ? packet_parse_headers+0x231/0x9c0 [ 19.145209][ T300] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 19.145216][ T300] ? __pfx_packet_parse_headers+0x10/0x10 [ 19.145221][ T300] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 19.145228][ T300] ? packet_cached_dev_get+0xd5/0x210 [ 19.145237][ T300] packet_snd+0xd0c/0x19d0 [ 19.145251][ T300] ? __pfx_packet_snd+0x10/0x10 [ 19.145258][ T300] ? build_sched_domains+0x14d0/0x1690 [ 19.145266][ T300] ? __lock_release+0x103/0x460 [ 19.145270][ T300] ? __might_fault+0x11b/0x170 [ 19.145278][ T300] ? __pfx___lock_release+0x10/0x10 [ 19.145287][ T300] __sys_sendto+0x3c3/0x450 [ 19.145293][ T300] ? __pfx___sys_sendto+0x10/0x10 [ 19.145295][ T300] ? __might_fault+0x11b/0x170 [ 19.145310][ T300] ? __sys_getsockname+0x150/0x1f0 [ 19.145314][ T300] ? __pfx___sys_getsockname+0x10/0x10 [ 19.145319][ T300] ? __pfx___up_read+0x10/0x10 [ 19.145327][ T300] ? do_user_addr_fault+0x972/0xe30 [ 19.145337][ T300] ? do_user_addr_fault+0x97c/0xe30 [ 19.145344][ T300] __x64_sys_sendto+0xe0/0x1c0 [ 19.145348][ T300] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 19.145354][ T300] do_syscall_64+0xc1/0x1d0 [ 19.145362][ T300] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 19.145369][ T300] RIP: 0033:0x7fe9bd4158f0 [ 19.145374][ 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 [ 19.145377][ T300] RSP: 002b:00007ffc0910c178 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 19.145381][ T300] RAX: ffffffffffffffda RBX: 0000000032605740 RCX: 00007fe9bd4158f0 [ 19.145383][ T300] RDX: 000000000000007c RSI: 00007ffc0910c1f0 RDI: 0000000000000006 [ 19.145385][ T300] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 19.145387][ T300] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 19.145388][ T300] R13: 00007ffc0910c1f0 R14: 0000000000000006 R15: 0000000032605c90 [ 19.145404][ T300] [ 19.230941][ T390] lag2: Port device veth7 added [ 20.161241][ T404] br1: port 1(lag2.100) entered blocking state [ 20.161581][ T404] br1: port 1(lag2.100) entered disabled state [ 20.162019][ T404] lag2.100: entered allmulticast mode [ 20.162879][ T404] lag2: entered allmulticast mode [ 20.163119][ T404] veth1: entered allmulticast mode [ 20.163524][ T404] veth7: entered allmulticast mode [ 20.166401][ T404] lag2.100: entered promiscuous mode [ 20.166651][ T404] lag2: entered promiscuous mode [ 20.167686][ T404] veth1: entered promiscuous mode [ 20.168201][ T404] veth7: entered promiscuous mode [ 20.561380][ T411] br2: port 1(lag2.200) entered blocking state [ 20.561675][ T411] br2: port 1(lag2.200) entered disabled state [ 20.561947][ T411] lag2.200: entered allmulticast mode [ 20.565253][ T411] lag2.200: entered promiscuous mode [ 20.799953][ T414] br1: port 1(lag2.100) entered blocking state [ 20.800480][ T414] br1: port 1(lag2.100) entered forwarding state [ 20.879216][ T415] br2: port 1(lag2.200) entered blocking state [ 20.879521][ T415] br2: port 1(lag2.200) entered forwarding state [ 21.374566][ T423] lag3: Mode changed to "loadbalance" [ 21.462810][ T425] 8021q: adding VLAN 0 to HW filter on device lag3 [ 21.846317][ T431] lag3: Port device veth2 added [ 21.942760][ T432] lag3: Port device veth4 added [ 34.473961][ T515] veth7: left promiscuous mode [ 34.474600][ T515] veth7: left allmulticast mode [ 34.477948][ T515] lag2: Port device veth7 removed [ 50.119544][ T576] veth7: entered promiscuous mode [ 50.120040][ T576] veth7: entered allmulticast mode [ 50.121102][ T576] lag2: Port device veth7 added [ 50.467629][ T587] veth1: left promiscuous mode [ 50.468777][ T587] veth1: left allmulticast mode [ 50.472507][ T587] lag2: Port device veth1 removed [ 66.228333][ T39] br1: port 1(lag2.100) entered disabled state [ 66.230481][ T39] br2: port 1(lag2.200) entered disabled state [ 66.309970][ T648] veth7: left promiscuous mode [ 66.310504][ T648] veth7: left allmulticast mode [ 66.313747][ T648] lag2: Port device veth7 removed [ 66.659066][ T659] veth1: entered promiscuous mode [ 66.659581][ T659] veth1: entered allmulticast mode [ 66.660558][ T659] lag2: Port device veth1 added [ 66.684321][ T151] br1: port 1(lag2.100) entered blocking state [ 66.684993][ T151] br1: port 1(lag2.100) entered forwarding state [ 66.686231][ T151] br2: port 1(lag2.200) entered blocking state [ 66.686489][ T151] br2: port 1(lag2.200) entered forwarding state [ 66.998967][ T670] veth7: entered promiscuous mode [ 66.999582][ T670] veth7: entered allmulticast mode [ 67.000561][ T670] lag2: Port device veth7 added [ 82.676433][ T730] lag2.200: left allmulticast mode [ 82.676711][ T730] lag2.200: left promiscuous mode [ 82.677685][ T730] br2: port 1(lag2.200) entered disabled state [ 82.768639][ T731] lag2.100: left allmulticast mode [ 82.768881][ T731] lag2: left allmulticast mode [ 82.769090][ T731] veth1: left allmulticast mode [ 82.769306][ T731] veth7: left allmulticast mode [ 82.769508][ T731] lag2.100: left promiscuous mode [ 82.769687][ T731] lag2: left promiscuous mode [ 82.769876][ T731] veth1: left promiscuous mode [ 82.770673][ T731] veth7: left promiscuous mode [ 82.771599][ T731] br1: port 1(lag2.100) entered disabled state [ 84.928071][ T733] br1: port 1(lag2.100) entered blocking state [ 84.928438][ T733] br1: port 1(lag2.100) entered disabled state [ 84.928745][ T733] lag2.100: entered allmulticast mode [ 84.928949][ T733] lag2: entered allmulticast mode [ 84.929174][ T733] veth1: entered allmulticast mode [ 84.929398][ T733] veth7: entered allmulticast mode [ 84.931447][ T733] lag2.100: entered promiscuous mode [ 84.931698][ T733] lag2: entered promiscuous mode [ 84.931912][ T733] veth1: entered promiscuous mode [ 84.932373][ T733] veth7: entered promiscuous mode [ 84.934190][ T733] br1: port 1(lag2.100) entered blocking state [ 84.934490][ T733] br1: port 1(lag2.100) entered forwarding state [ 85.045015][ T734] br2: port 1(lag2.200) entered blocking state [ 85.045396][ T734] br2: port 1(lag2.200) entered disabled state [ 85.045721][ T734] lag2.200: entered allmulticast mode [ 85.049429][ T734] lag2.200: entered promiscuous mode [ 85.051892][ T734] br2: port 1(lag2.200) entered blocking state [ 85.052394][ T734] br2: port 1(lag2.200) entered forwarding state [ 100.678732][ T794] lag3: Port device veth2 removed [ 116.321676][ T855] lag3: Port device veth2 added [ 116.625450][ T866] lag3: Port device veth4 removed [ 132.337056][ T927] lag3: Port device veth2 removed [ 132.648661][ T938] lag3: Port device veth4 added [ 133.035529][ T949] lag3: Port device veth2 added [ 149.468926][ T1019] lag3: Port device veth4 removed [ 149.550421][ T1020] lag3: Port device veth2 removed [ 150.459372][ T1032] br2: port 1(lag2.200) entered disabled state [ 150.555643][ T1033] br1: port 1(lag2.100) entered disabled state [ 150.821113][ T1036] lag2.200: left allmulticast mode [ 150.821431][ T1036] lag2.200: left promiscuous mode [ 150.821989][ T1036] br2: port 1(lag2.200) entered disabled state [ 151.024014][ T1038] lag2.100: left allmulticast mode [ 151.024266][ T1038] lag2: left allmulticast mode [ 151.024472][ T1038] veth1: left allmulticast mode [ 151.024682][ T1038] veth7: left allmulticast mode [ 151.024895][ T1038] lag2.100: left promiscuous mode [ 151.025088][ T1038] lag2: left promiscuous mode [ 151.025293][ T1038] veth1: left promiscuous mode [ 151.025732][ T1038] veth7: left promiscuous mode [ 151.026486][ T1038] br1: port 1(lag2.100) entered disabled state [ 151.523814][ T1042] lag2: Port device veth7 removed [ 151.593048][ T1043] lag2: Port device veth1 removed [ 153.409736][ T1060] lag4: Port device veth5 removed [ 153.500814][ T1061] lag4: Port device veth3 removed [ 155.356416][ T1076] lag1: Port device veth6 removed [ 155.433182][ T1077] lag1: Port device veth0 removed