[ 27.095727][ T512] team0: Mode changed to "loadbalance" [ 27.122733][ T512] team0: Port device dummy1 added [ 27.126713][ T512] team0: Port device dummy2 added [ 27.253631][ T512] [ 27.253868][ T512] ============================= [ 27.254039][ T512] WARNING: suspicious RCU usage [ 27.254426][ T512] 6.14.0-rc6-virtme #1 Not tainted [ 27.254598][ T512] ----------------------------- [ 27.254774][ T512] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 27.255082][ T512] [ 27.255082][ T512] other info that might help us debug this: [ 27.255082][ T512] [ 27.255386][ T512] [ 27.255386][ T512] rcu_scheduler_active = 2, debug_locks = 1 [ 27.255619][ T512] 1 lock held by teamd/512: [ 27.255837][ T512] #0: ffffffffbad5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 27.256162][ T512] [ 27.256162][ T512] stack backtrace: [ 27.256378][ T512] CPU: 0 UID: 0 PID: 512 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 27.256382][ T512] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.256384][ T512] Call Trace: [ 27.256386][ T512] [ 27.256389][ T512] dump_stack_lvl+0xb0/0xd0 [ 27.256396][ T512] lockdep_rcu_suspicious+0x1ea/0x280 [ 27.256407][ T512] dev_hard_start_xmit+0x2fc/0x3f0 [ 27.256418][ T512] __dev_queue_xmit+0xef9/0x1850 [ 27.256432][ T512] ? __pfx___dev_queue_xmit+0x10/0x10 [ 27.256437][ T512] ? packet_parse_headers+0x231/0x9c0 [ 27.256448][ T512] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 27.256455][ T512] ? __pfx_packet_parse_headers+0x10/0x10 [ 27.256460][ T512] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 27.256467][ T512] ? packet_cached_dev_get+0xd5/0x210 [ 27.256477][ T512] packet_snd+0xd00/0x19c0 [ 27.256493][ T512] ? __pfx_packet_snd+0x10/0x10 [ 27.256500][ T512] ? build_sched_domains+0x4d0/0x1690 [ 27.256509][ T512] ? __lock_release+0x103/0x460 [ 27.256511][ T512] ? __might_fault+0x11b/0x170 [ 27.256516][ T512] ? __pfx___lock_release+0x10/0x10 [ 27.256525][ T512] __sys_sendto+0x3c3/0x450 [ 27.256531][ T512] ? __pfx___sys_sendto+0x10/0x10 [ 27.256534][ T512] ? __might_fault+0x11b/0x170 [ 27.256547][ T512] ? __sys_getsockname+0x150/0x1f0 [ 27.256552][ T512] ? __pfx___sys_getsockname+0x10/0x10 [ 27.256557][ T512] ? __pfx___up_read+0x10/0x10 [ 27.256564][ T512] ? do_user_addr_fault+0x972/0xe30 [ 27.256574][ T512] ? do_user_addr_fault+0x97c/0xe30 [ 27.256581][ T512] __x64_sys_sendto+0xe0/0x1c0 [ 27.256585][ T512] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.256590][ T512] do_syscall_64+0xc1/0x1d0 [ 27.256596][ T512] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.256600][ T512] RIP: 0033:0x7f5741f198f0 [ 27.256604][ T512] 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 [ 27.256606][ T512] RSP: 002b:00007ffc3831d2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 27.256610][ T512] RAX: ffffffffffffffda RBX: 000000002c6a22e0 RCX: 00007f5741f198f0 [ 27.256612][ T512] RDX: 000000000000007c RSI: 00007ffc3831d330 RDI: 0000000000000013 [ 27.256614][ T512] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 27.256616][ T512] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 27.256618][ T512] R13: 00007ffc3831d330 R14: 0000000000000013 R15: 0000000000000002 [ 27.256633][ T512] [ 27.336044][ T517] dummy1: entered promiscuous mode [ 27.336428][ T517] dummy2: entered promiscuous mode [ 27.861868][ T536] dummy1: left promiscuous mode [ 27.862283][ T536] dummy2: left promiscuous mode [ 28.252776][ T537] team0 (unregistering): Port device dummy1 removed [ 28.254860][ T537] team0 (unregistering): Port device dummy2 removed