[ 12.506934][ T296] 8021q: 802.1Q VLAN Support v1.8 [ 15.956015][ T343] gre: GRE over IPv4 demultiplexor driver [ 15.974807][ T343] ip_gre: GRE over IPv4 tunneling driver [ 16.914247][ T361] lag: Mode changed to "loadbalance" [ 17.112156][ T364] lag: Port device veth2 added [ 17.370946][ T368] lag: Port device veth4 added [ 17.517641][ T370] 8021q: adding VLAN 0 to HW filter on device lag [ 17.589620][ T371] br1: port 1(lag) entered blocking state [ 17.590079][ T371] br1: port 1(lag) entered disabled state [ 17.590413][ T371] lag: entered allmulticast mode [ 17.590607][ T371] veth2: entered allmulticast mode [ 17.590963][ T371] veth4: entered allmulticast mode [ 17.593226][ T371] veth2: entered promiscuous mode [ 17.593566][ T371] veth4: entered promiscuous mode [ 17.601401][ T371] ip (371) used greatest stack depth: 24240 bytes left [ 17.672795][ T372] br1: port 1(lag) entered blocking state [ 17.673159][ T372] br1: port 1(lag) entered forwarding state [ 18.285534][ T381] GACT probability NOT on [ 24.700736][ T409] Mirror/redirect action on [ 35.209795][ T419] [ 35.210077][ T419] ============================= [ 35.210248][ T419] WARNING: suspicious RCU usage [ 35.210410][ T419] 6.14.0-rc6-virtme #1 Not tainted [ 35.210651][ T419] ----------------------------- [ 35.210832][ T419] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 35.211132][ T419] [ 35.211132][ T419] other info that might help us debug this: [ 35.211132][ T419] [ 35.211460][ T419] [ 35.211460][ T419] rcu_scheduler_active = 2, debug_locks = 1 [ 35.211697][ T419] 1 lock held by arping/419: [ 35.211879][ T419] #0: ffffffff8e15b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 35.212232][ T419] [ 35.212232][ T419] stack backtrace: [ 35.212461][ T419] CPU: 3 UID: 0 PID: 419 Comm: arping Not tainted 6.14.0-rc6-virtme #1 [ 35.212468][ T419] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 35.212471][ T419] Call Trace: [ 35.212474][ T419] [ 35.212477][ T419] dump_stack_lvl+0xb0/0xd0 [ 35.212489][ T419] lockdep_rcu_suspicious+0x1ea/0x280 [ 35.212505][ T419] dev_hard_start_xmit+0x2fc/0x3f0 [ 35.212517][ T419] __dev_queue_xmit+0xfaf/0x18d0 [ 35.212531][ T419] ? __pfx___dev_queue_xmit+0x10/0x10 [ 35.212536][ T419] ? packet_parse_headers+0x231/0x9c0 [ 35.212544][ T419] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 35.212550][ T419] ? __pfx_packet_parse_headers+0x10/0x10 [ 35.212554][ T419] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 35.212560][ T419] ? dev_get_by_index+0xb2/0x190 [ 35.212570][ T419] packet_snd+0xd0c/0x19d0 [ 35.212582][ T419] ? __lock_release+0x103/0x460 [ 35.212586][ T419] ? __might_fault+0x11b/0x170 [ 35.212593][ T419] ? __pfx_packet_snd+0x10/0x10 [ 35.212595][ T419] ? trace_lock_acquire+0x14c/0x1f0 [ 35.212597][ T419] ? __pfx___lock_release+0x10/0x10 [ 35.212604][ T419] ? lock_acquire+0x32/0xc0 [ 35.212611][ T419] ? __might_fault+0x11b/0x170 [ 35.212621][ T419] __sys_sendto+0x3c3/0x450 [ 35.212627][ T419] ? __pfx___sys_sendto+0x10/0x10 [ 35.212638][ T419] ? __lock_release+0x103/0x460 [ 35.212643][ T419] ? __pfx___lock_release+0x10/0x10 [ 35.212652][ T419] ? __pfx___up_read+0x10/0x10 [ 35.212664][ T419] ? do_user_addr_fault+0x374/0xe30 [ 35.212681][ T419] ? do_user_addr_fault+0x374/0xe30 [ 35.212694][ T419] __x64_sys_sendto+0xe0/0x1c0 [ 35.212701][ T419] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 35.212710][ T419] do_syscall_64+0xc1/0x1d0 [ 35.212722][ T419] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 35.212729][ T419] RIP: 0033:0x7f593d77ea4a [ 35.212735][ T419] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 35.212740][ T419] RSP: 002b:00007ffcd2a814c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 35.212746][ T419] RAX: ffffffffffffffda RBX: 0000000000000100 RCX: 00007f593d77ea4a [ 35.212749][ T419] RDX: 000000000000001c RSI: 00007ffcd2a814e0 RDI: 0000000000000005 [ 35.212752][ T419] RBP: 00007ffcd2a81630 R08: 00007ffcd2a82a90 R09: 0000000000000014 [ 35.212755][ T419] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcd2a82d68 [ 35.212758][ T419] R13: 00000000004047b4 R14: 0000000000407de0 R15: 00007f593d884000 [ 35.212784][ T419] [ 39.306444][ T41] br1: port 1(lag) entered disabled state [ 45.272055][ T46] br1: port 1(lag) entered blocking state [ 45.272316][ T46] br1: port 1(lag) entered forwarding state [ 60.512518][ T72] br1: port 1(lag) entered disabled state [ 66.535992][ T72] br1: port 1(lag) entered blocking state [ 66.536238][ T72] br1: port 1(lag) entered forwarding state [ 67.297038][ T513] lag: left allmulticast mode [ 67.297326][ T513] veth2: left allmulticast mode [ 67.297536][ T513] veth4: left allmulticast mode [ 67.297807][ T513] veth2: left promiscuous mode [ 67.298068][ T513] veth4: left promiscuous mode [ 67.298287][ T513] br1: port 1(lag) entered disabled state [ 67.309312][ T513] ip (513) used greatest stack depth: 23616 bytes left [ 67.397843][ T361] lag: Port device veth4 removed [ 67.402110][ T361] lag: Port device veth2 removed [ 67.789908][ T361] teamd (361) used greatest stack depth: 23424 bytes left