[ 29.061644][ T526] team0: Mode changed to "loadbalance" [ 29.083363][ T526] team0: Port device dummy1 added [ 29.088569][ T526] team0: Port device dummy2 added [ 29.230061][ T526] [ 29.230342][ T526] ============================= [ 29.230794][ T526] WARNING: suspicious RCU usage [ 29.230950][ T526] 6.14.0-rc6-virtme #1 Not tainted [ 29.231104][ T526] ----------------------------- [ 29.231274][ T526] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 29.231555][ T526] [ 29.231555][ T526] other info that might help us debug this: [ 29.231555][ T526] [ 29.231854][ T526] [ 29.231854][ T526] rcu_scheduler_active = 2, debug_locks = 1 [ 29.232079][ T526] 1 lock held by teamd/526: [ 29.232246][ T526] #0: ffffffffbb15b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 29.232540][ T526] [ 29.232540][ T526] stack backtrace: [ 29.232765][ T526] CPU: 0 UID: 0 PID: 526 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 29.232770][ T526] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.232772][ T526] Call Trace: [ 29.232775][ T526] [ 29.232777][ T526] dump_stack_lvl+0xb0/0xd0 [ 29.232786][ T526] lockdep_rcu_suspicious+0x1ea/0x280 [ 29.232799][ T526] dev_hard_start_xmit+0x2fc/0x3f0 [ 29.232810][ T526] __dev_queue_xmit+0xef9/0x1850 [ 29.232825][ T526] ? __pfx___dev_queue_xmit+0x10/0x10 [ 29.232829][ T526] ? packet_parse_headers+0x231/0x9c0 [ 29.232841][ T526] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 29.232849][ T526] ? __pfx_packet_parse_headers+0x10/0x10 [ 29.232854][ T526] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 29.232862][ T526] ? packet_cached_dev_get+0xd5/0x210 [ 29.232872][ T526] packet_snd+0xd00/0x19c0 [ 29.232888][ T526] ? __pfx_packet_snd+0x10/0x10 [ 29.232895][ T526] ? build_sched_domains+0x4d0/0x1690 [ 29.232905][ T526] ? __lock_release+0x103/0x460 [ 29.232908][ T526] ? __might_fault+0x11b/0x170 [ 29.232914][ T526] ? __pfx___lock_release+0x10/0x10 [ 29.232923][ T526] __sys_sendto+0x3c3/0x450 [ 29.232930][ T526] ? __pfx___sys_sendto+0x10/0x10 [ 29.232932][ T526] ? __might_fault+0x11b/0x170 [ 29.232946][ T526] ? __sys_getsockname+0x150/0x1f0 [ 29.232951][ T526] ? __pfx___sys_getsockname+0x10/0x10 [ 29.232957][ T526] ? __pfx___up_read+0x10/0x10 [ 29.232964][ T526] ? do_user_addr_fault+0x972/0xe30 [ 29.232975][ T526] ? do_user_addr_fault+0x97c/0xe30 [ 29.232982][ T526] __x64_sys_sendto+0xe0/0x1c0 [ 29.232987][ T526] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 29.232991][ T526] do_syscall_64+0xc1/0x1d0 [ 29.232997][ T526] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.233004][ T526] RIP: 0033:0x7f6f079f18f0 [ 29.233010][ T526] 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 [ 29.233012][ T526] RSP: 002b:00007fff0cfdd3c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 29.233017][ T526] RAX: ffffffffffffffda RBX: 0000000032c32280 RCX: 00007f6f079f18f0 [ 29.233019][ T526] RDX: 000000000000007c RSI: 00007fff0cfdd440 RDI: 0000000000000013 [ 29.233021][ T526] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 29.233023][ T526] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 29.233024][ T526] R13: 00007fff0cfdd440 R14: 0000000000000013 R15: 0000000000000002 [ 29.233041][ T526] [ 29.331681][ T530] dummy1: entered promiscuous mode [ 29.332075][ T530] dummy2: entered promiscuous mode [ 29.828565][ T550] dummy1: left promiscuous mode [ 29.828942][ T550] dummy2: left promiscuous mode [ 30.230954][ T551] team0 (unregistering): Port device dummy1 removed [ 30.233026][ T551] team0 (unregistering): Port device dummy2 removed