[ 10.263019][ T245] team0: Mode changed to "loadbalance" [ 10.284137][ T245] team0: Port device dummy1 added [ 10.288016][ T245] team0: Port device dummy2 added [ 10.405202][ T245] [ 10.405474][ T245] ============================= [ 10.405635][ T245] WARNING: suspicious RCU usage [ 10.406026][ T245] 6.14.0-rc6-virtme #1 Not tainted [ 10.406182][ T245] ----------------------------- [ 10.406350][ T245] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 10.406612][ T245] [ 10.406612][ T245] other info that might help us debug this: [ 10.406612][ T245] [ 10.406912][ T245] [ 10.406912][ T245] rcu_scheduler_active = 2, debug_locks = 1 [ 10.407167][ T245] 1 lock held by teamd/245: [ 10.407338][ T245] #0: ffffffffa7f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 10.407634][ T245] [ 10.407634][ T245] stack backtrace: [ 10.407834][ T245] CPU: 0 UID: 0 PID: 245 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 10.407839][ T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.407841][ T245] Call Trace: [ 10.407844][ T245] [ 10.407846][ T245] dump_stack_lvl+0xb0/0xd0 [ 10.407854][ T245] lockdep_rcu_suspicious+0x1ea/0x280 [ 10.407867][ T245] dev_hard_start_xmit+0x2fc/0x3f0 [ 10.407878][ T245] __dev_queue_xmit+0xef9/0x1850 [ 10.407893][ T245] ? __pfx___dev_queue_xmit+0x10/0x10 [ 10.407898][ T245] ? packet_parse_headers+0x231/0x9c0 [ 10.407909][ T245] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 10.407917][ T245] ? __pfx_packet_parse_headers+0x10/0x10 [ 10.407923][ T245] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 10.407931][ T245] ? packet_cached_dev_get+0xd5/0x210 [ 10.407941][ T245] packet_snd+0xd00/0x19c0 [ 10.407957][ T245] ? __pfx_packet_snd+0x10/0x10 [ 10.407965][ T245] ? build_sched_domains+0x4d0/0x1690 [ 10.407974][ T245] ? __lock_release+0x103/0x460 [ 10.407976][ T245] ? __might_fault+0x11b/0x170 [ 10.407982][ T245] ? __pfx___lock_release+0x10/0x10 [ 10.407991][ T245] __sys_sendto+0x3c3/0x450 [ 10.407998][ T245] ? __pfx___sys_sendto+0x10/0x10 [ 10.408001][ T245] ? __might_fault+0x11b/0x170 [ 10.408014][ T245] ? __sys_getsockname+0x150/0x1f0 [ 10.408019][ T245] ? __pfx___sys_getsockname+0x10/0x10 [ 10.408024][ T245] ? __pfx___up_read+0x10/0x10 [ 10.408032][ T245] ? do_user_addr_fault+0x972/0xe30 [ 10.408043][ T245] ? do_user_addr_fault+0x97c/0xe30 [ 10.408051][ T245] __x64_sys_sendto+0xe0/0x1c0 [ 10.408056][ T245] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 10.408061][ T245] do_syscall_64+0xc1/0x1d0 [ 10.408068][ T245] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.408074][ T245] RIP: 0033:0x7f802b2d68f0 [ 10.408079][ T245] 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 [ 10.408083][ T245] RSP: 002b:00007ffc0cce3798 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 10.408087][ T245] RAX: ffffffffffffffda RBX: 000000001f3b02e0 RCX: 00007f802b2d68f0 [ 10.408090][ T245] RDX: 000000000000007c RSI: 00007ffc0cce3810 RDI: 0000000000000013 [ 10.408092][ T245] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 10.408093][ T245] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 10.408095][ T245] R13: 00007ffc0cce3810 R14: 0000000000000013 R15: 0000000000000002 [ 10.408111][ T245] [ 10.532874][ T249] dummy1: entered promiscuous mode [ 10.533650][ T249] dummy2: entered promiscuous mode [ 11.004092][ T269] dummy1: left promiscuous mode [ 11.004515][ T269] dummy2: left promiscuous mode [ 11.014072][ T269] ip (269) used greatest stack depth: 24552 bytes left [ 11.429366][ T270] team0 (unregistering): Port device dummy1 removed [ 11.431858][ T270] team0 (unregistering): Port device dummy2 removed [ 11.490739][ T270] ip (270) used greatest stack depth: 23472 bytes left