[ 10.190676][ T244] team0: Mode changed to "loadbalance" [ 10.210336][ T244] team0: Port device dummy1 added [ 10.222796][ T244] team0: Port device dummy2 added [ 10.326655][ T244] [ 10.326906][ T244] ============================= [ 10.327234][ T244] WARNING: suspicious RCU usage [ 10.327404][ T244] 6.14.0-rc6-virtme #1 Not tainted [ 10.327570][ T244] ----------------------------- [ 10.327736][ T244] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 10.328024][ T244] [ 10.328024][ T244] other info that might help us debug this: [ 10.328024][ T244] [ 10.328355][ T244] [ 10.328355][ T244] rcu_scheduler_active = 2, debug_locks = 1 [ 10.328605][ T244] 1 lock held by teamd/244: [ 10.328770][ T244] #0: ffffffffb7d5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 10.329111][ T244] [ 10.329111][ T244] stack backtrace: [ 10.329322][ T244] CPU: 3 UID: 0 PID: 244 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 10.329326][ T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.329329][ T244] Call Trace: [ 10.329331][ T244] [ 10.329334][ T244] dump_stack_lvl+0xb0/0xd0 [ 10.329341][ T244] lockdep_rcu_suspicious+0x1ea/0x280 [ 10.329354][ T244] dev_hard_start_xmit+0x2fc/0x3f0 [ 10.329365][ T244] __dev_queue_xmit+0xef9/0x1850 [ 10.329380][ T244] ? __pfx___dev_queue_xmit+0x10/0x10 [ 10.329385][ T244] ? packet_parse_headers+0x231/0x9c0 [ 10.329396][ T244] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 10.329404][ T244] ? __pfx_packet_parse_headers+0x10/0x10 [ 10.329410][ T244] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 10.329418][ T244] ? packet_cached_dev_get+0xd5/0x210 [ 10.329428][ T244] packet_snd+0xd00/0x19c0 [ 10.329443][ T244] ? __pfx_packet_snd+0x10/0x10 [ 10.329451][ T244] ? build_sched_domains+0x4d0/0x1690 [ 10.329460][ T244] ? __lock_release+0x103/0x460 [ 10.329463][ T244] ? __might_fault+0x11b/0x170 [ 10.329469][ T244] ? __pfx___lock_release+0x10/0x10 [ 10.329478][ T244] __sys_sendto+0x3c3/0x450 [ 10.329485][ T244] ? __pfx___sys_sendto+0x10/0x10 [ 10.329488][ T244] ? __might_fault+0x11b/0x170 [ 10.329501][ T244] ? __sys_getsockname+0x150/0x1f0 [ 10.329506][ T244] ? __pfx___sys_getsockname+0x10/0x10 [ 10.329512][ T244] ? __pfx___up_read+0x10/0x10 [ 10.329519][ T244] ? do_user_addr_fault+0x972/0xe30 [ 10.329531][ T244] ? do_user_addr_fault+0x97c/0xe30 [ 10.329539][ T244] __x64_sys_sendto+0xe0/0x1c0 [ 10.329543][ T244] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 10.329548][ T244] do_syscall_64+0xc1/0x1d0 [ 10.329555][ T244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.329562][ T244] RIP: 0033:0x7f0dea2a38f0 [ 10.329566][ T244] 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 [ 10.329570][ T244] RSP: 002b:00007ffddea5fb28 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 10.329574][ T244] RAX: ffffffffffffffda RBX: 000000001ef3e280 RCX: 00007f0dea2a38f0 [ 10.329576][ T244] RDX: 000000000000007c RSI: 00007ffddea5fba0 RDI: 0000000000000013 [ 10.329578][ T244] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 10.329580][ T244] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 10.329582][ T244] R13: 00007ffddea5fba0 R14: 0000000000000013 R15: 0000000000000002 [ 10.329598][ T244] [ 10.423199][ T248] dummy1: entered promiscuous mode [ 10.423560][ T248] dummy2: entered promiscuous mode [ 10.437112][ T248] ip (248) used greatest stack depth: 23968 bytes left [ 10.957182][ T269] dummy1: left promiscuous mode [ 10.957645][ T269] dummy2: left promiscuous mode [ 11.373669][ T270] team0 (unregistering): Port device dummy1 removed [ 11.376107][ T270] team0 (unregistering): Port device dummy2 removed