[ 27.798852][ T516] team0: Mode changed to "loadbalance" [ 27.816536][ T516] team0: Port device dummy1 added [ 27.820237][ T516] team0: Port device dummy2 added [ 27.918875][ T516] [ 27.919198][ T516] ============================= [ 27.919374][ T516] WARNING: suspicious RCU usage [ 27.919896][ T516] 6.14.0-rc6-virtme #1 Not tainted [ 27.920083][ T516] ----------------------------- [ 27.920254][ T516] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 27.920557][ T516] [ 27.920557][ T516] other info that might help us debug this: [ 27.920557][ T516] [ 27.920883][ T516] [ 27.920883][ T516] rcu_scheduler_active = 2, debug_locks = 1 [ 27.921194][ T516] 1 lock held by teamd/516: [ 27.921369][ T516] #0: ffffffffa1f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 27.921703][ T516] [ 27.921703][ T516] stack backtrace: [ 27.921930][ T516] CPU: 3 UID: 0 PID: 516 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 27.921935][ T516] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.921937][ T516] Call Trace: [ 27.921940][ T516] [ 27.921942][ T516] dump_stack_lvl+0xb0/0xd0 [ 27.921951][ T516] lockdep_rcu_suspicious+0x1ea/0x280 [ 27.921964][ T516] dev_hard_start_xmit+0x2fc/0x3f0 [ 27.921975][ T516] __dev_queue_xmit+0xef9/0x1850 [ 27.921990][ T516] ? __pfx___dev_queue_xmit+0x10/0x10 [ 27.921994][ T516] ? packet_parse_headers+0x231/0x9c0 [ 27.922006][ T516] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 27.922013][ T516] ? __pfx_packet_parse_headers+0x10/0x10 [ 27.922019][ T516] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 27.922027][ T516] ? packet_cached_dev_get+0xd5/0x210 [ 27.922037][ T516] packet_snd+0xd00/0x19c0 [ 27.922053][ T516] ? __pfx_packet_snd+0x10/0x10 [ 27.922060][ T516] ? build_sched_domains+0x4d0/0x1690 [ 27.922069][ T516] ? __lock_release+0x103/0x460 [ 27.922072][ T516] ? __might_fault+0x11b/0x170 [ 27.922078][ T516] ? __pfx___lock_release+0x10/0x10 [ 27.922090][ T516] __sys_sendto+0x3c3/0x450 [ 27.922100][ T516] ? __pfx___sys_sendto+0x10/0x10 [ 27.922105][ T516] ? __might_fault+0x11b/0x170 [ 27.922125][ T516] ? __sys_getsockname+0x150/0x1f0 [ 27.922133][ T516] ? __pfx___sys_getsockname+0x10/0x10 [ 27.922140][ T516] ? __pfx___up_read+0x10/0x10 [ 27.922148][ T516] ? do_user_addr_fault+0x972/0xe30 [ 27.922159][ T516] ? do_user_addr_fault+0x97c/0xe30 [ 27.922166][ T516] __x64_sys_sendto+0xe0/0x1c0 [ 27.922171][ T516] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.922175][ T516] do_syscall_64+0xc1/0x1d0 [ 27.922183][ T516] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.922189][ T516] RIP: 0033:0x7f51c42358f0 [ 27.922194][ T516] 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 [ 27.922198][ T516] RSP: 002b:00007ffe4e987b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 27.922202][ T516] RAX: ffffffffffffffda RBX: 0000000001543280 RCX: 00007f51c42358f0 [ 27.922204][ T516] RDX: 000000000000007c RSI: 00007ffe4e987c10 RDI: 0000000000000013 [ 27.922206][ T516] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 27.922208][ T516] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 27.922210][ T516] R13: 00007ffe4e987c10 R14: 0000000000000013 R15: 0000000000000002 [ 27.922226][ T516] [ 28.058092][ T520] dummy1: entered promiscuous mode [ 28.058834][ T520] dummy2: entered promiscuous mode [ 28.569484][ T540] dummy1: left promiscuous mode [ 28.569943][ T540] dummy2: left promiscuous mode [ 28.953613][ T541] team0 (unregistering): Port device dummy1 removed [ 28.956029][ T541] team0 (unregistering): Port device dummy2 removed